Resolve a build error that recently became apparent where this

software attempts to define their own function log() that is reserved
for the natural logartihm one, by renaming the private function to
mylog().

I wonder whether anybody is still using this at all, the respective
service (called `Btx' here) has been cancelled in Germany a couple of
years ago.  Any other European countries perhaps?  I consider deleting
the port some day.  By now, it was easy enough to fix though.  Speak
up if you want to see this port continued.

comms/xcept/Makefile

@@ -7,7 +7,7 @@
 
 PORTNAME=	xcept
 PORTVERSION=	2.1.2
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	comms
 MASTER_SITES=	${MASTER_SITE_LOCAL}
 MASTER_SITE_SUBDIR=	asami/LOCAL_PORTS