Log Message:
Here are the most important changes in MIMEDefang 2.72:

* In mimedefang.c, truncate overlong responses from the multiplexor. Also \ 
sanitize replies so "\r" doesn't get fed to smfi_setmlreply.
* If a slave process replies with a very long reply, have the multiplexor \ 
consume (and discard) the excess input so the multiplexor-to-slave protocol does \ 
not become de-synchronized.
* When mimedefang becomes a daemon, have it wait for a "go/no-go" \ 
message from the child before exiting. This should eliminate race conditions \ 
whereby the MTA starts before the milter socket is present.
* Avoid run-time errors from Unix::Syslog on some platforms.