tree c787b7f883c748f9a1a8ca385ec7cbc0f4ee1d8e
parent 89965827fef2925b05a8fc037c57432ebedacd95
author Don Garrett <dgarrett@google.com> 1475029791 -0700
committer ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> 1475102398 +0000

commands: BuildRootGitCleanup ignore ref deletion error.

Newer versions of git return errors of "git update-ref -d foo" is run
and foo doesn't exist. Older versions returned without error. A git
update on some servers broke us unexpectedly.

BUG=chromium:650911
TEST=run_tests

Change-Id: Iccd6bc9bc0b52821c29928617d20dba49fd14085
Reviewed-on: https://chromium-review.googlesource.com/390432
Tested-by: Don Garrett <dgarrett@chromium.org>
Reviewed-by: Ningning Xia <nxia@chromium.org>
(cherry picked from commit eb62387504ffea771d5cbef968292b458ff2cf8a)
Reviewed-on: https://chromium-review.googlesource.com/390485
Reviewed-by: Josafat Garcia <josafat@chromium.org>
Tested-by: Ningning Xia <nxia@chromium.org>
Commit-Queue: Ningning Xia <nxia@chromium.org>