Suppress MP "connection closed other end" warnings, if no bytes transmitted

When an MP library connection is closed uncleanly, a warning is issued to the logs, detailing the IP of the client connection.

Unfortunately, monitoring tools, sometimes connected to the MP port and then close it immediately. Seems a odd way to monitor health to me, but allegedly it's a fairly standard approach.

It would good if the warning was suppressed in these cases, that is suppressed when an MP connection is received , no bytes are sent and then closed.