codereview: Mention that deleting a CL is a use of 'hg change' in its header.
codereview: Mention that deleting a CL is a use of 'hg change' in its header.

R=rsc
CC=golang-dev
http://codereview.appspot.com/903043

Committer: Russ Cox <5ad239cb8a44f659eaaee0aa1ea5b94947abe557@golang.org>
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go