Polymur to polymur single message doesn't complete

[jamiealquiza]

Test: polymur1 with polymur2 as destination, polymur2 in console-out mode. Write single message to polymur1, polymur2 receives but doesn't emit.

[jamiealquiza]

It's the Scan() call blocking on the inbound TCP connection; the flush timeout select won't be hit unless another messages rolls in or the connections disconnects (and EOFs). Going to ignore this since polymur-to-polymur connections will discontinue using the standard TCP output writer.