message: core: improve printf
diff: @@ -220,7 +220,7 @@ void UdpConnection::receive(UdpConnection *parent)
  parent->_remote_ip = new_remote_ip;
  parent->_remote_port_number = new_remote_port_number;
  - LogInfo() << "Device changed to: " << new_remote_ip;
  + LogInfo() << "Device changed to: " << new_remote_ip << ":" << new_remote_port_number;
  }
  }
  