Automated refactoring using gofmt.

Passes toolstash-check.

Change-Id: I8624e1c231dc736e1bb4cc800acaf629a0af91d7
Reviewed-on: https://go-review.googlesource.com/38740
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>