rename the "queues" configuration section to "topic", to indicate it is only relevant for topic exchanges

plugins/messagebus.conf

@@ -13,7 +13,7 @@ name = koji.events
 type = topic
 durable = true
 
-[queues]
+[topic]
 prefix = koji.event
 
 [format]

plugins/messagebus.py

@@ -56,7 +56,8 @@ def get_session():
 
 def get_routing_key(cbtype, *args, **kws):
     global config
-    key = [config.get('queues', 'prefix'), cbtype]
+    key = [config.get('topic', 'prefix'), cbtype]
+
     if cbtype in ('prePackageListChange', 'postPackageListChange'):
         key.append(kws['tag']['name'])
         key.append(kws['package']['name'])