diff --git a/src/cmd/compile/internal/ssa/debug.go b/src/cmd/compile/internal/ssa/debug.go
index 13fe67c..6353f72 100644
--- a/src/cmd/compile/internal/ssa/debug.go
+++ b/src/cmd/compile/internal/ssa/debug.go
@@ -1,6 +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 ssa
 
 import (
diff --git a/src/cmd/compile/internal/ssa/passbm_test.go b/src/cmd/compile/internal/ssa/passbm_test.go
index eefdbb8..3fd3eb5 100644
--- a/src/cmd/compile/internal/ssa/passbm_test.go
+++ b/src/cmd/compile/internal/ssa/passbm_test.go
@@ -1,6 +1,7 @@
 // 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.
+
 package ssa
 
 import (
diff --git a/src/cmd/go/internal/trace/trace.go b/src/cmd/go/internal/trace/trace.go
index 7cb7636..c8fac92 100644
--- a/src/cmd/go/internal/trace/trace.go
+++ b/src/cmd/go/internal/trace/trace.go
@@ -1,6 +1,7 @@
 // Copyright 2020 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 trace
 
 import (
diff --git a/src/cmd/link/internal/benchmark/bench_test.go b/src/cmd/link/internal/benchmark/bench_test.go
index d8ec717..419dc55 100644
--- a/src/cmd/link/internal/benchmark/bench_test.go
+++ b/src/cmd/link/internal/benchmark/bench_test.go
@@ -1,6 +1,7 @@
 // Copyright 2020 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 benchmark
 
 import (
diff --git a/src/cmd/link/internal/ld/errors.go b/src/cmd/link/internal/ld/errors.go
index c5ce097..d6e8ff2 100644
--- a/src/cmd/link/internal/ld/errors.go
+++ b/src/cmd/link/internal/ld/errors.go
@@ -1,6 +1,7 @@
 // Copyright 2020 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 ld
 
 import (
diff --git a/src/runtime/closure_test.go b/src/runtime/closure_test.go
index ea65fbd..741c932 100644
--- a/src/runtime/closure_test.go
+++ b/src/runtime/closure_test.go
@@ -1,6 +1,7 @@
 // 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.
+
 package runtime_test
 
 import "testing"
diff --git a/src/runtime/map_benchmark_test.go b/src/runtime/map_benchmark_test.go
index 893cb6c..d0becc9 100644
--- a/src/runtime/map_benchmark_test.go
+++ b/src/runtime/map_benchmark_test.go
@@ -1,6 +1,7 @@
 // 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.
+
 package runtime_test
 
 import (
diff --git a/src/runtime/slice_test.go b/src/runtime/slice_test.go
index e963a43..cd2bc26 100644
--- a/src/runtime/slice_test.go
+++ b/src/runtime/slice_test.go
@@ -1,6 +1,7 @@
 // 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.
+
 package runtime_test
 
 import (
diff --git a/src/sync/cond_test.go b/src/sync/cond_test.go
index 9d0d9ad..859cae5 100644
--- a/src/sync/cond_test.go
+++ b/src/sync/cond_test.go
@@ -1,6 +1,7 @@
 // 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.
+
 package sync_test
 
 import (
diff --git a/test/fixedbugs/issue15281.go b/test/fixedbugs/issue15281.go
index 187c96f..390867c 100644
--- a/test/fixedbugs/issue15281.go
+++ b/test/fixedbugs/issue15281.go
@@ -3,6 +3,7 @@
 // Copyright 2016 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 "runtime"