Bug 777530 changed the B2G build names from: B2G mozilla-central_ics_armv7a_gecko build ...to: b2g_mozilla-central_ics_armv7a_gecko build So they no longer display as "Bg", just "B".
Created attachment 665467 [details] [diff] [review] Patch v1
Comment on attachment 665467 [details] [diff] [review] Patch v1 Switching review, given bug 794715 comment 1.
Checked in: http://hg.mozilla.org/users/mstange_themasta.com/tinderboxpushlog/rev/6a3eda51c610 (Needs push to production, but not overly urgent since the builds still do appear; so I'll wait until the next push, which will be start of next week, unless anything else crops up first. Closing for now to get this off my assigned bug list).