NO-JIRA: fix a formatting error in test output
@@ -1114,7 +1114,7 @@ class PresettledCustomTimeout(object):
self.parent.bail(None)
else:
self.parent.bail("Messages sent to the router is %d, "
- "Messages processed by the router is %d",
+ "Messages processed by the router is %d" %
(self.parent.n_messages,
ingress_delivery_count - self.parent.begin_ingress_count))
