Rewrote the backends test to be more portable. Was previously failing on MySQL.
Rewrote the backends test to be more portable. Was previously failing on MySQL.

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%406354

Belgabor/django,Belgabor/django,Belgabor/django