Fixed lint

tests/functional/conftest.py

@@ -144,4 +144,4 @@ def fx(name):
         errors = [err for err in site.get_errors() if err and 'favicon' not in err['message']]
         assert len(errors) == 0, "\n".join(["{message}".format(**err) for err in errors])
         return site
-    return fx
+    return fx