missing connect logging for RouterActor

pypushflow/RouterActor.py

@@ -48,6 +48,9 @@ class RouterActor(AbstractActor):
         self.dictValues = {}
 
     def connect(self, actor, expectedValue="other"):
+        self.logger.debug(
+            "connect to actor '%s' (output port %s)", actor.name, expectedValue
+        )
         if expectedValue != "other" and expectedValue not in self.listPort:
             raise RuntimeError(
                 f"Port {expectedValue} not defined for router actor {self.name}!"