scratch: add license headers, LICENSE file

Change-Id: I129c9c8c852f148d3629a7e0957dc09b4f411978
Reviewed-on: https://go-review.googlesource.com/48813
Reviewed-by: Jessica Frazelle <me@jessfraz.com>
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..6a66aea
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/hakim/greeting.go b/hakim/greeting.go
index 9863801..b0dd2e6 100644
--- a/hakim/greeting.go
+++ b/hakim/greeting.go
@@ -1,3 +1,7 @@
+// Copyright 2017 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.
+
 package main
 
 import "fmt"
diff --git a/hakim/main.go b/hakim/main.go
index 3ed81c5..b47087a 100644
--- a/hakim/main.go
+++ b/hakim/main.go
@@ -1,3 +1,7 @@
+// Copyright 2017 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.
+
 package main
 
 func main() {
diff --git a/r/greeting.go b/r/greeting.go
index 9863801..b0dd2e6 100644
--- a/r/greeting.go
+++ b/r/greeting.go
@@ -1,3 +1,7 @@
+// Copyright 2017 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.
+
 package main
 
 import "fmt"
diff --git a/r/main.go b/r/main.go
index 3ed81c5..b47087a 100644
--- a/r/main.go
+++ b/r/main.go
@@ -1,3 +1,7 @@
+// Copyright 2017 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.
+
 package main
 
 func main() {
diff --git a/rsc/greeting.go b/rsc/greeting.go
index 3fe3548..d044962 100644
--- a/rsc/greeting.go
+++ b/rsc/greeting.go
@@ -1,3 +1,7 @@
+// Copyright 2017 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.
+
 package main
 
 import "fmt"
diff --git a/rsc/main.go b/rsc/main.go
index 6d9b442..a3e28dd 100644
--- a/rsc/main.go
+++ b/rsc/main.go
@@ -1,3 +1,7 @@
+// Copyright 2017 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.
+
 package main
 
 func main() {
diff --git a/sameer/greeting.go b/sameer/greeting.go
index 9863801..b0dd2e6 100644
--- a/sameer/greeting.go
+++ b/sameer/greeting.go
@@ -1,3 +1,7 @@
+// Copyright 2017 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.
+
 package main
 
 import "fmt"
diff --git a/sameer/main.go b/sameer/main.go
index 3ed81c5..b47087a 100644
--- a/sameer/main.go
+++ b/sameer/main.go
@@ -1,3 +1,7 @@
+// Copyright 2017 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.
+
 package main
 
 func main() {
diff --git a/sfrancia/main.go b/sfrancia/main.go
index 29bd0d6..32d7d8c 100644
--- a/sfrancia/main.go
+++ b/sfrancia/main.go
@@ -1,3 +1,7 @@
+// Copyright 2017 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.
+
 package main
 
 import "fmt"