Fixed #9199 -- We were erroneously only prepending "www" to the domain if we

      also needed to append a slash (when PREPEND_WWW=True).

Based on a patch and tests from gonz. Thanks.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@9184 bcc190cf-cafb-0310-a4f2-bffc1f526a37