MQTT Message in openhab.log

When I restart OPENHAB2 with the following command

I get a couple of messages in openahab.log

2017-11-17 09:18:58.456 [INFO ] [t.mqtt.internal.MqttBrokerConnection] - Starting MQTT broker connection ''
2017-11-17 09:18:59.021 [INFO ] [t.mqtt.internal.MqttBrokerConnection] - Starting MQTT broker connection ‘broker’

Notice the BROKER at the end of the lines (Ive highlighted them). Is this normal or should my IP address or host name be in there ?

Thanks in advance

This would be the name of the broker connection you specifiec in mqtt.cfg.
Please post the content of this file here (without personal credentials of course), my guess is, you have unintentionally two brokers defined, one of which without a Name and the other is called broker.

Note: the binding is capable of handling more than one broker connection in parallel.