Always displaying the commit message/git log makes it easier to
upload a manual roll with private details. Omit the git log if rolling
from a non-public host. The `--always-log` flag can be used to include
it anyway.
Bug: 332331835
Change-Id: Ic9201d5323fa04a55dcf4a451a9f76c48eebfd5e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/5444190
Commit-Queue: Gavin Mak <gavinmak@google.com>
Reviewed-by: Scott Lee <ddoman@chromium.org>