Wrapped an import per isort.

tests/check_framework/test_urls.py

@@ -1,7 +1,8 @@
 from django.conf import settings
 from django.core.checks.messages import Warning
 from django.core.checks.urls import (
-    check_url_config, check_url_namespaces_unique, get_warning_for_invalid_pattern,
+    check_url_config, check_url_namespaces_unique,
+    get_warning_for_invalid_pattern,
 )
 from django.test import SimpleTestCase
 from django.test.utils import override_settings