Fixed #17248 -- Added a missing versionadded directive for TestCase.assertRaisesMessage.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17105 bcc190cf-cafb-0310-a4f2-bffc1f526a37

Author: aaugustin

docs/topics/testing.txt

@@ -1512,6 +1512,8 @@ your test suite.
 
 .. method:: TestCase.assertRaisesMessage(expected_exception, expected_message, callable_obj=None, *args, **kwargs)
 
+    .. versionadded:: 1.4
+
     Asserts that execution of callable ``callable_obj`` raised the
     ``expected_exception`` exception and that such exception has an
     ``expected_message`` representation. Any other outcome is reported as a