gofmt: apply gofmt -w src misc
Remove trailing whitespace in comments.
No other changes.
R=r
CC=golang-dev
https://golang.org/cl/6815053
diff --git a/src/pkg/os/file.go b/src/pkg/os/file.go
index 5b1658a..32cac6d 100644
--- a/src/pkg/os/file.go
+++ b/src/pkg/os/file.go
@@ -9,7 +9,7 @@
// if a call that takes a file name fails, such as Open or Stat, the error
// will include the failing file name when printed and will be of type
// *PathError, which may be unpacked for more information.
-//
+//
// The os interface is intended to be uniform across all operating systems.
// Features not generally available appear in the system-specific package syscall.
//
