The actual flag is --send-mail. Also includes a fix
to publish these changes if a comment is included.

Bug: 740950
Change-Id: I38ca0a35c1364c8364eb0ef301137c04daede40b
Reviewed-on: https://chromium-review.googlesource.com/572033Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Commit-Queue: Aaron Gable <agable@chromium.org>