all: make copyright headers consistent with one space after period

This is a subset of https://golang.org/cl/20022 with only the copyright
header lines, so the next CL will be smaller and more reviewable.

Go policy has been single space after periods in comments for some time.

The copyright header template at:

    https://golang.org/doc/contribute.html#copyright

also uses a single space.

Make them all consistent.

Change-Id: Icc26c6b8495c3820da6b171ca96a74701b4a01b0
Reviewed-on: https://go-review.googlesource.com/20111
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/src/math/asin_386.s b/src/math/asin_386.s
index 4f34e12..7dab390 100644
--- a/src/math/asin_386.s
+++ b/src/math/asin_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/asin_amd64.s b/src/math/asin_amd64.s
index 1a43d48..ad71be0 100644
--- a/src/math/asin_amd64.s
+++ b/src/math/asin_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/asin_amd64p32.s b/src/math/asin_amd64p32.s
index 2751c47..7cbdd41 100644
--- a/src/math/asin_amd64p32.s
+++ b/src/math/asin_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/asin_arm.s b/src/math/asin_arm.s
index 8fe03b6..21a8d07 100644
--- a/src/math/asin_arm.s
+++ b/src/math/asin_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/atan2_386.s b/src/math/atan2_386.s
index 31a74e7..90d211b 100644
--- a/src/math/atan2_386.s
+++ b/src/math/atan2_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/atan2_amd64.s b/src/math/atan2_amd64.s
index fc471f7..256e98c 100644
--- a/src/math/atan2_amd64.s
+++ b/src/math/atan2_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/atan2_amd64p32.s b/src/math/atan2_amd64p32.s
index 3fdc03c..3d1711a 100644
--- a/src/math/atan2_amd64p32.s
+++ b/src/math/atan2_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/atan2_arm.s b/src/math/atan2_arm.s
index 06c12ec..755131f 100644
--- a/src/math/atan2_arm.s
+++ b/src/math/atan2_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/atan_386.s b/src/math/atan_386.s
index f3976b1..43e79b9 100644
--- a/src/math/atan_386.s
+++ b/src/math/atan_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/atan_amd64.s b/src/math/atan_amd64.s
index b801ae9..0458625 100644
--- a/src/math/atan_amd64.s
+++ b/src/math/atan_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/atan_amd64p32.s b/src/math/atan_amd64p32.s
index 1c1f6ce..166f5b9 100644
--- a/src/math/atan_amd64p32.s
+++ b/src/math/atan_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/atan_arm.s b/src/math/atan_arm.s
index d190a8b..29b5de2 100644
--- a/src/math/atan_arm.s
+++ b/src/math/atan_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/big/arith_amd64p32.s b/src/math/big/arith_amd64p32.s
index 8610e90..6006646 100644
--- a/src/math/big/arith_amd64p32.s
+++ b/src/math/big/arith_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/big/arith_decl.go b/src/math/big/arith_decl.go
index 1707aa4..5433b6d 100644
--- a/src/math/big/arith_decl.go
+++ b/src/math/big/arith_decl.go
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/big/arith_decl_pure.go b/src/math/big/arith_decl_pure.go
index e760a38..21775dd 100644
--- a/src/math/big/arith_decl_pure.go
+++ b/src/math/big/arith_decl_pure.go
@@ -1,4 +1,4 @@
-// Copyright 2015 The Go Authors.  All rights reserved.
+// Copyright 2015 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/dim_386.s b/src/math/dim_386.s
index c8194fe..22b8abb 100644
--- a/src/math/dim_386.s
+++ b/src/math/dim_386.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/dim_amd64.s b/src/math/dim_amd64.s
index 8e6aaad..249f1b1 100644
--- a/src/math/dim_amd64.s
+++ b/src/math/dim_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/dim_amd64p32.s b/src/math/dim_amd64p32.s
index e5e3447..2740aa9 100644
--- a/src/math/dim_amd64p32.s
+++ b/src/math/dim_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/dim_arm.s b/src/math/dim_arm.s
index be66950..642e485 100644
--- a/src/math/dim_arm.s
+++ b/src/math/dim_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/exp2_386.s b/src/math/exp2_386.s
index 7d11920..d04cad6 100644
--- a/src/math/exp2_386.s
+++ b/src/math/exp2_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/exp2_amd64.s b/src/math/exp2_amd64.s
index 903c835..e7e1f865a 100644
--- a/src/math/exp2_amd64.s
+++ b/src/math/exp2_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/exp2_amd64p32.s b/src/math/exp2_amd64p32.s
index 4d38309..067d3bf 100644
--- a/src/math/exp2_amd64p32.s
+++ b/src/math/exp2_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/exp2_arm.s b/src/math/exp2_arm.s
index 58283cd..9b996fb 100644
--- a/src/math/exp2_arm.s
+++ b/src/math/exp2_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/exp_386.s b/src/math/exp_386.s
index 6a478a5..18a92ef 100644
--- a/src/math/exp_386.s
+++ b/src/math/exp_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/exp_amd64.s b/src/math/exp_amd64.s
index d9cf8fd..f63efec 100644
--- a/src/math/exp_amd64.s
+++ b/src/math/exp_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/exp_amd64p32.s b/src/math/exp_amd64p32.s
index 98ac2e9..d1f8312 100644
--- a/src/math/exp_amd64p32.s
+++ b/src/math/exp_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/exp_arm.s b/src/math/exp_arm.s
index ce36d03..493677a 100644
--- a/src/math/exp_arm.s
+++ b/src/math/exp_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/expm1_386.s b/src/math/expm1_386.s
index a48ca8a..c1392cd 100644
--- a/src/math/expm1_386.s
+++ b/src/math/expm1_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/expm1_amd64.s b/src/math/expm1_amd64.s
index b7d5a3b..bdb78b3 100644
--- a/src/math/expm1_amd64.s
+++ b/src/math/expm1_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/expm1_amd64p32.s b/src/math/expm1_amd64p32.s
index 709ebef..2d27ef5 100644
--- a/src/math/expm1_amd64p32.s
+++ b/src/math/expm1_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/expm1_arm.s b/src/math/expm1_arm.s
index 5f80d87..b7b3b48 100644
--- a/src/math/expm1_arm.s
+++ b/src/math/expm1_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/export_test.go b/src/math/export_test.go
index 02992d7..368308e 100644
--- a/src/math/export_test.go
+++ b/src/math/export_test.go
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/floor_386.s b/src/math/floor_386.s
index 31c9b17..0960eec 100644
--- a/src/math/floor_386.s
+++ b/src/math/floor_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/floor_amd64.s b/src/math/floor_amd64.s
index 7f512e7..aa10ee8 100644
--- a/src/math/floor_amd64.s
+++ b/src/math/floor_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2012 The Go Authors.  All rights reserved.
+// Copyright 2012 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/floor_amd64p32.s b/src/math/floor_amd64p32.s
index 5b87d7a..13be9a6 100644
--- a/src/math/floor_amd64p32.s
+++ b/src/math/floor_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/floor_arm.s b/src/math/floor_arm.s
index 5909176..3123be3 100644
--- a/src/math/floor_arm.s
+++ b/src/math/floor_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/frexp_386.s b/src/math/frexp_386.s
index 5bff7e2..832b435 100644
--- a/src/math/frexp_386.s
+++ b/src/math/frexp_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/frexp_amd64.s b/src/math/frexp_amd64.s
index 93a3210..41a6c61 100644
--- a/src/math/frexp_amd64.s
+++ b/src/math/frexp_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/frexp_amd64p32.s b/src/math/frexp_amd64p32.s
index fbb5645..2a9da73 100644
--- a/src/math/frexp_amd64p32.s
+++ b/src/math/frexp_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/frexp_arm.s b/src/math/frexp_arm.s
index 7842eca..fda0068 100644
--- a/src/math/frexp_arm.s
+++ b/src/math/frexp_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/hypot_386.s b/src/math/hypot_386.s
index d321f46..a89cdf7 100644
--- a/src/math/hypot_386.s
+++ b/src/math/hypot_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/hypot_amd64.s b/src/math/hypot_amd64.s
index a68eebc..d7983a7 100644
--- a/src/math/hypot_amd64.s
+++ b/src/math/hypot_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/hypot_amd64p32.s b/src/math/hypot_amd64p32.s
index b84542a..3f86bb7 100644
--- a/src/math/hypot_amd64p32.s
+++ b/src/math/hypot_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/hypot_arm.s b/src/math/hypot_arm.s
index 9c8abca..a78653a 100644
--- a/src/math/hypot_arm.s
+++ b/src/math/hypot_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/ldexp_386.s b/src/math/ldexp_386.s
index ac8e8ba..6f67ae1 100644
--- a/src/math/ldexp_386.s
+++ b/src/math/ldexp_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/ldexp_amd64.s b/src/math/ldexp_amd64.s
index 6063a64..a8fb7c7 100644
--- a/src/math/ldexp_amd64.s
+++ b/src/math/ldexp_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/ldexp_amd64p32.s b/src/math/ldexp_amd64p32.s
index 9aa9d9d..a629e9b 100644
--- a/src/math/ldexp_amd64p32.s
+++ b/src/math/ldexp_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/ldexp_arm.s b/src/math/ldexp_arm.s
index fcffa2e..b571c0a 100644
--- a/src/math/ldexp_arm.s
+++ b/src/math/ldexp_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log10_386.s b/src/math/log10_386.s
index 2897f3c..10eecd9 100644
--- a/src/math/log10_386.s
+++ b/src/math/log10_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log10_amd64.s b/src/math/log10_amd64.s
index 8382ba7..4a4d587 100644
--- a/src/math/log10_amd64.s
+++ b/src/math/log10_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log10_amd64p32.s b/src/math/log10_amd64p32.s
index bf43841..c356226 100644
--- a/src/math/log10_amd64p32.s
+++ b/src/math/log10_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log10_arm.s b/src/math/log10_arm.s
index dbcb835..271473d 100644
--- a/src/math/log10_arm.s
+++ b/src/math/log10_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log1p_386.s b/src/math/log1p_386.s
index 1c2d683..63b7e62 100644
--- a/src/math/log1p_386.s
+++ b/src/math/log1p_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log1p_amd64.s b/src/math/log1p_amd64.s
index 1e58fb1..5d10f29 100644
--- a/src/math/log1p_amd64.s
+++ b/src/math/log1p_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log1p_amd64p32.s b/src/math/log1p_amd64p32.s
index a14b5e3..10b286b 100644
--- a/src/math/log1p_amd64p32.s
+++ b/src/math/log1p_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log1p_arm.s b/src/math/log1p_arm.s
index 95d5496..6919b56 100644
--- a/src/math/log1p_arm.s
+++ b/src/math/log1p_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log_386.s b/src/math/log_386.s
index ff998af..0b64b50 100644
--- a/src/math/log_386.s
+++ b/src/math/log_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log_amd64.s b/src/math/log_amd64.s
index 84c60ab..bd2d063 100644
--- a/src/math/log_amd64.s
+++ b/src/math/log_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log_amd64p32.s b/src/math/log_amd64p32.s
index 5058d60..80434c6 100644
--- a/src/math/log_amd64p32.s
+++ b/src/math/log_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/log_arm.s b/src/math/log_arm.s
index e21d036..ecc2a35 100644
--- a/src/math/log_arm.s
+++ b/src/math/log_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/mod_amd64.s b/src/math/mod_amd64.s
index f99dbe2..3a0c980 100644
--- a/src/math/mod_amd64.s
+++ b/src/math/mod_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/mod_amd64p32.s b/src/math/mod_amd64p32.s
index c1b2311..fa85420 100644
--- a/src/math/mod_amd64p32.s
+++ b/src/math/mod_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/mod_arm.s b/src/math/mod_arm.s
index 5afb359..6e98912 100644
--- a/src/math/mod_arm.s
+++ b/src/math/mod_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/modf_386.s b/src/math/modf_386.s
index d549f1d..d9b1eeb 100644
--- a/src/math/modf_386.s
+++ b/src/math/modf_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/modf_amd64.s b/src/math/modf_amd64.s
index 701cf72..5292dd5 100644
--- a/src/math/modf_amd64.s
+++ b/src/math/modf_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/modf_amd64p32.s b/src/math/modf_amd64p32.s
index 5508c25..e9cf32d 100644
--- a/src/math/modf_amd64p32.s
+++ b/src/math/modf_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/modf_arm.s b/src/math/modf_arm.s
index ea3c8dc..7abd6d3 100644
--- a/src/math/modf_arm.s
+++ b/src/math/modf_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/rand/regress_test.go b/src/math/rand/regress_test.go
index 9ae5357..fe9c4be 100644
--- a/src/math/rand/regress_test.go
+++ b/src/math/rand/regress_test.go
@@ -1,4 +1,4 @@
-// Copyright 2014 The Go Authors.  All rights reserved.
+// Copyright 2014 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/remainder_amd64.s b/src/math/remainder_amd64.s
index f7fda99..71b981a 100644
--- a/src/math/remainder_amd64.s
+++ b/src/math/remainder_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/remainder_amd64p32.s b/src/math/remainder_amd64p32.s
index cd5cf55..fdca642 100644
--- a/src/math/remainder_amd64p32.s
+++ b/src/math/remainder_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/remainder_arm.s b/src/math/remainder_arm.s
index 1ae597a..523a59c 100644
--- a/src/math/remainder_arm.s
+++ b/src/math/remainder_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sin_386.s b/src/math/sin_386.s
index ccc8e64..9d605a1 100644
--- a/src/math/sin_386.s
+++ b/src/math/sin_386.s
@@ -1,4 +1,4 @@
-// Copyright 2009 The Go Authors.  All rights reserved.
+// Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sin_amd64.s b/src/math/sin_amd64.s
index 0c33cec..a3d5f10 100644
--- a/src/math/sin_amd64.s
+++ b/src/math/sin_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sin_amd64p32.s b/src/math/sin_amd64p32.s
index 9f93eba..4d9b000 100644
--- a/src/math/sin_amd64p32.s
+++ b/src/math/sin_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sin_arm.s b/src/math/sin_arm.s
index 467af3d..c8142a9 100644
--- a/src/math/sin_arm.s
+++ b/src/math/sin_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sincos_386.s b/src/math/sincos_386.s
index 83af501..f700a4f 100644
--- a/src/math/sincos_386.s
+++ b/src/math/sincos_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sincos_amd64.s b/src/math/sincos_amd64.s
index 59bf55f..b9ef88c 100644
--- a/src/math/sincos_amd64.s
+++ b/src/math/sincos_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sincos_amd64p32.s b/src/math/sincos_amd64p32.s
index 360e94d..db86029 100644
--- a/src/math/sincos_amd64p32.s
+++ b/src/math/sincos_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sincos_arm.s b/src/math/sincos_arm.s
index 9fe0482..d8d833c 100644
--- a/src/math/sincos_arm.s
+++ b/src/math/sincos_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sqrt_386.s b/src/math/sqrt_386.s
index 5234a1e..402d152 100644
--- a/src/math/sqrt_386.s
+++ b/src/math/sqrt_386.s
@@ -1,4 +1,4 @@
-// Copyright 2009 The Go Authors.  All rights reserved.
+// Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sqrt_amd64.s b/src/math/sqrt_amd64.s
index 443d83f..f8d825d 100644
--- a/src/math/sqrt_amd64.s
+++ b/src/math/sqrt_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2009 The Go Authors.  All rights reserved.
+// Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sqrt_amd64p32.s b/src/math/sqrt_amd64p32.s
index d83a286..181114c 100644
--- a/src/math/sqrt_amd64p32.s
+++ b/src/math/sqrt_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sqrt_arm.s b/src/math/sqrt_arm.s
index 4f9dc2e..a920b08 100644
--- a/src/math/sqrt_arm.s
+++ b/src/math/sqrt_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/sqrt_arm64.s b/src/math/sqrt_arm64.s
index 9861446..3041d25 100644
--- a/src/math/sqrt_arm64.s
+++ b/src/math/sqrt_arm64.s
@@ -1,4 +1,4 @@
-// Copyright 2015 The Go Authors.  All rights reserved.
+// Copyright 2015 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/stubs_arm64.s b/src/math/stubs_arm64.s
index eea81e9..04de911 100644
--- a/src/math/stubs_arm64.s
+++ b/src/math/stubs_arm64.s
@@ -1,4 +1,4 @@
-// Copyright 2014 The Go Authors.  All rights reserved.
+// Copyright 2014 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/stubs_mips64x.s b/src/math/stubs_mips64x.s
index 63be6ea..97e6e4c 100644
--- a/src/math/stubs_mips64x.s
+++ b/src/math/stubs_mips64x.s
@@ -1,4 +1,4 @@
-// Copyright 2014 The Go Authors.  All rights reserved.
+// Copyright 2014 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/stubs_ppc64x.s b/src/math/stubs_ppc64x.s
index 9369c5c..42e5480 100644
--- a/src/math/stubs_ppc64x.s
+++ b/src/math/stubs_ppc64x.s
@@ -1,4 +1,4 @@
-// Copyright 2014 The Go Authors.  All rights reserved.
+// Copyright 2014 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/tan_386.s b/src/math/tan_386.s
index f1bdae1..cb65a3f 100644
--- a/src/math/tan_386.s
+++ b/src/math/tan_386.s
@@ -1,4 +1,4 @@
-// Copyright 2010 The Go Authors.  All rights reserved.
+// Copyright 2010 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/tan_amd64.s b/src/math/tan_amd64.s
index 39aa080..385ca05 100644
--- a/src/math/tan_amd64.s
+++ b/src/math/tan_amd64.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/tan_amd64p32.s b/src/math/tan_amd64p32.s
index 9b3f70d..b5e789d 100644
--- a/src/math/tan_amd64p32.s
+++ b/src/math/tan_amd64p32.s
@@ -1,4 +1,4 @@
-// Copyright 2013 The Go Authors.  All rights reserved.
+// Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
diff --git a/src/math/tan_arm.s b/src/math/tan_arm.s
index 36c7c12..5f2cdd1 100644
--- a/src/math/tan_arm.s
+++ b/src/math/tan_arm.s
@@ -1,4 +1,4 @@
-// Copyright 2011 The Go Authors.  All rights reserved.
+// Copyright 2011 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.