Allows easily getting at more than just the commit message.
I intend to look at the author to whitelist bots from binary size
checks (initially).

Bug: 702625
Change-Id: I684fdfacc88635ec4849216c74183f63f9d54810
Reviewed-on: https://chromium-review.googlesource.com/1070483
Commit-Queue: agrieve <agrieve@chromium.org>
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>