Fix bug: When the net/cvsup-mirror port is installed on a system
with OSVERSION >= 600101, the update.sh script is unable to start
PREFIX/etc/rc.d/cvsupd.sh script, as it doesn't exist. Instead the
cvsupd.sh script is named cvsupd on systems with OSVERSION >=

PR: ports/108483
Submitted by: Scot Hetzel