I've created the group "sync-reviews@chromium.org", and added it to WATCHLISTS. Everything works but in the CC line on code reviews it shows up as "sync-reviews_chromium.org". I would like it to show up as "sync-reviews", the way that "chromium-reviews" does.

My understanding is that the correct way to do this is the give the address a nickname of "sync-reviews", but since it's not a real account it would need to be manually inserted into the nickname database.