Sync signon tweaks with nm.debian.org

signon/README.md

@@ -49,7 +49,7 @@ use. For example:
 ```py
 class SignonMixin(DCLayoutMixin):
     """
-    Mixin for signon views                                    
+    Mixin for signon views
     """
     def get_context_data(self, **kw):
         ctx = super().get_context_data(**kw)

signon/tests/test_authentication.py

@@ -194,7 +194,8 @@ class TestAuthentication(SignonFixtureMixin, TestCase):
             }
 
         with mock.patch("signon.middleware.SignonMiddleware._instantiate_identities", _instantiate_identities2):
-            response = client.get(reverse('signon:whoami'))
+            with self.assertLogs():
+                response = client.get(reverse('signon:whoami'))
 
         self.assertEqual(response.status_code, 200)