Whitespace cleanup.

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

tests/resolve_url/tests.py

@@ -66,4 +66,3 @@ class ResolveUrlTests(TestCase):
         """
         with self.assertRaises(NoReverseMatch):
             resolve_url(lambda: 'asdf')
-