Previously, we were assuming that the review requester would submit the
review, so the submit command required that you check out the review ref
before you could submit. However, with pull requests a requester might
not have permission to submit a review. As such, we should make it easy
for a reviewer to submit a review.
This change allows that scenario, by adding support for specifying the
hash of the review to submit.
@@ -37,17 +37,32 @@ var (
// The "args" parameter contains all of the command line arguments that followed the subcommand.