[1.4.X] Fixed #17993 -- Removed quotes around module parameter for wider...

[1.4.X] Fixed #17993 -- Removed quotes around module parameter for wider compatibility. Thanks roberto@unbit.it for the report.

Backport of r17813 from trunk.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.4.X@17821 bcc190cf-cafb-0310-a4f2-bffc1f526a37