Whitespace cleanup.

* Removed trailing whitespace.
* Added newline to EOF if missing.
* Removed blank lines at EOF.
* Removed some stray tabs.

tests/urlpatterns_reverse/tests.py

@@ -656,4 +656,3 @@ class ViewLoadingTests(TestCase):
         # swallow it.
         self.assertRaises(AttributeError, get_callable,
             'urlpatterns_reverse.views_broken.i_am_broken')
-