While working on fixing git-cl-status for gerrit, I realized
it would be really easy to bring the Rietveld version up to
parity and simplify it at the same time.

Bug: 706460
Change-Id: Icff32b532fa29f8869205111cd117176e0d34b8f
Reviewed-on: https://chromium-review.googlesource.com/470448
Commit-Queue: Aaron Gable <agable@chromium.org>
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>