Update prebuilts to go1.7rc1 ab/3043704

toolchain/go sha ffb9ee3a

Change-Id: I230dd018def6fd975e28add1eb70aae6c54ad5d7
diff --git a/test/fixedbugs/bug272.go b/test/fixedbugs/bug272.go
index f943d68..6b8862f 100644
--- a/test/fixedbugs/bug272.go
+++ b/test/fixedbugs/bug272.go
@@ -1,6 +1,6 @@
 // run
 
-// 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.