mozilla-b2g/mozilla-get-url — pull request #12 by asutherland (2014-10-04 21:10:01+00:00)
Title: Filter prerelease builds by product name as well.

Sometimes "--product b2g" would return a firefox build that lived in the same
directory if its timestamp was as-recent/more-recent than the b2g builds that
live in the directory.

See https://github.com/mozilla-b2g/mozilla-download/issues/8 for more context.