tree 0f128f1201e521d22da10a0f88c7c61f10a5eff3
parent 34635f909d7542a2a5de32ecf2b3a80a07f77a87
author Austin Clements <austin@google.com> 1446744577 -0500
committer Austin Clements <austin@google.com> 1447202267 +0000

git-codereview: factor submitting a single change

This factors the logic for committing a single change in preparation
for supporting submitting multiple changes at once.

Change-Id: Ida083ada2c3a5393f99159e588dbc87af3902091
Reviewed-on: https://go-review.googlesource.com/16673
Reviewed-by: Andrew Gerrand <adg@golang.org>