phpbb/phpbb3 — pull request #1227 by EXreaction (2013-02-10 02:57:24+00:00)
Title: [feature/migrations] Add language strings for migrations errors

Unfulfillable returns string of the missing dependency name now if
the migration is unfulfillable (this is significantly more helpful).

http://tracker.phpbb.com/browse/PHPBB3-11351