Fixed typo assertNotContains() docstring.
@@ -476,7 +476,7 @@ class SimpleTestCase(unittest.TestCase):
"""
Assert that a response indicates that some content was retrieved
successfully, (i.e., the HTTP status code was as expected) and that
- ``text`` doesn't occurs in the content of the response.
+ ``text`` doesn't occur in the content of the response.
"""
text_repr, real_count, msg_prefix = self._assert_contains(
response, text, status_code, msg_prefix, html)
