https://gitlab.synchro.net/main/sbbs/-/commit/91125d1b721525a9c7720d0c
Modified Files:
	src/sbbs3/websrvr.c
Log Message:
Track and report the concurrent connections per client highwater mark

It's possible now for clients to easily exceed the configured max concurrent
connections limit, even though they just get an error 429 page. Let's at least
track and log when a new highwater mark is reached.
--- SBBSecho 3.23-Linux