Fixed some comments referring to a nonexistent TestClient class.

django/test/testcases.py

@@ -245,9 +245,9 @@ class SimpleTestCase(unittest.TestCase):
         Assert that a response redirected to a specific URL and that the
         redirect URL can be loaded.
 
-        Won't work for external links since it uses TestClient to do a request
-        (use fetch_redirect_response=False to check such links without fetching
-        them).
+        Won't work for external links since it uses the test client to do a
+        request (use fetch_redirect_response=False to check such links without
+        fetching them).
         """
         if msg_prefix:
             msg_prefix += ": "

tests/auth_tests/test_views.py

@@ -641,7 +641,7 @@ class LoginTest(AuthViewsTestCase):
         Makes sure that a login rotates the currently-used CSRF token.
         """
         # Do a GET to establish a CSRF token
-        # TestClient isn't used here as we're testing middleware, essentially.
+        # The test client isn't used here as it's a test for middleware.
         req = HttpRequest()
         CsrfViewMiddleware().process_view(req, LoginView.as_view(), (), {})
         # get_token() triggers CSRF token inclusion in the response