Add formatting failure

Author: JelteF

pgcommitfest/commitfest/models.py

@@ -22,7 +22,7 @@ def __str__(self):
 
     @property
     def fullname(self):
-        return "%s %s (%s)" % (
+        return '%s %s (%s)' % (
             self.user.first_name,
             self.user.last_name,
             self.user.username,