Converted get_or_create_regress tests from doctests to unittests. We have...

Converted get_or_create_regress tests from doctests to unittests.  We have always been at war with doctests.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14177 bcc190cf-cafb-0310-a4f2-bffc1f526a37