codereview: fix for Mercurial 1.9
codereview: fix for Mercurial 1.9

R=golang-dev, mirtchovski, mikioh.mikioh
CC=golang-dev
http://codereview.appspot.com/4686049

Committer: Russ Cox <5ad239cb8a44f659eaaee0aa1ea5b94947abe557@golang.org>

tav/go,tav/go,tav/go,tav/go,tav/go,tav/go,tav/go