gotest: make _testmain.go conform to gofmt rules
gotest: make _testmain.go conform to gofmt rules

Otherwise, running "gofmt -d ." after "gotest" gives some
spurious changes.

R=golang-dev, adg
CC=golang-dev
http://codereview.appspot.com/5504101

Committer: Andrew Gerrand <395a7d33bec8475c9b83b7d440f141bcbd994aa5@golang.org>
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go