Fixed #9506 -- Marked error string for translation.
Fixed #9506 -- Marked error string for translation.

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%409360

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