Fix extraneous whitespace in QueueListener.prepare (GH-13803)

Author: Lothiraldan

Lib/logging/handlers.py

@@ -1437,7 +1437,7 @@ def start(self):
         t.daemon = True
         t.start()
 
-    def prepare(self , record):
+    def prepare(self, record):
         """
         Prepare a record for handling.