[1.1.X] Fixed #13345: Don't attempt to load the locale regressiontests...

[1.1.X] Fixed #13345: Don't attempt to load the locale regressiontests subdirectory as a Django app. Thanks ramiro. 
r12971 from trunk.


git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.1.X@12987 bcc190cf-cafb-0310-a4f2-bffc1f526a37