FreeBSD specific: m5sum doesn't exist, it's md5

--- lib/tools.in.orig	Wed Jun  7 03:42:41 2006
+++ lib/tools.in	Wed Jun  7 03:42:50 2006
@@ -15,7 +15,7 @@
 		local tempfile=`mktemp /tmp/$1.XXXXXXXX`
 	else
 		DATE=`date`
-		sectmp=`echo $DATE | /usr/bin/md5sum | cut -d- -f1`
+		sectmp=`echo $DATE | /sbin/md5 | cut -d- -f1`
 		local tempfile=/tmp/$1.$sectmp
 	fi
 	echo $tempfile