Removed rsplit() usage for python2.3 compatibility. Refs #3625.
Removed rsplit() usage for python2.3 compatibility. Refs #3625.

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%404671

adieu/django-nonrel,adieu/django-nonrel,adieu/django-nonrel