This also applies to git map-branches.

R=ehmaldonado

Change-Id: Ica9bc92660716c15cbdd6bfd77b93f08bd0d8f9b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2099329
Commit-Queue: Andrii Shyshkalov <tandrii@google.com>
Auto-Submit: Andrii Shyshkalov <tandrii@google.com>
Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>