[2.0.x] Fixed #28776 -- Fixed a/an/and typos in docs and comments.

Backport of 6c0042430e3618ce5c276d195d92a6b884daa3a3 from master

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/auth_tests/test_checks.py b/tests/auth_tests/test_checks.py
index 3f86e7a80e..8c3e323efa 100644
--- a/tests/auth_tests/test_checks.py
+++ b/tests/auth_tests/test_checks.py
@@ -57,8 +57,8 @@ class UserModelChecksTests(SimpleTestCase):
     @override_settings(AUTH_USER_MODEL='auth_tests.CustomUserNonUniqueUsername')
     def test_username_non_unique(self):
         """
-        A non-unique USERNAME_FIELD should raise an error only if we use the
-        default authentication backend. Otherwise, an warning should be raised.
+        A non-unique USERNAME_FIELD raises an error only if the default
+        authentication backend is used. Otherwise, a warning is raised.
         """
         errors = checks.run_checks()
         self.assertEqual(errors, [