diff -ruN --exclude=CVS /usr/ports/security/knock/Makefile /home/iamben/tmp/ports/security/knock/Makefile
--- /usr/ports/security/knock/Makefile	2012-08-06 07:19:36.000000000 +0800
+++ /home/iamben/tmp/ports/security/knock/Makefile	2012-08-27 21:17:31.089871996 +0800
@@ -7,6 +7,7 @@
 
 PORTNAME=	knock
 PORTVERSION=	0.5
+PORTREVISION=	1
 PORTEPOCH=	1
 CATEGORIES=	security
 MASTER_SITES=	http://www.zeroflux.org/proj/knock/files/ \
diff -ruN --exclude=CVS /usr/ports/security/knock/files/knockd.in /home/iamben/tmp/ports/security/knock/files/knockd.in
--- /usr/ports/security/knock/files/knockd.in	2012-08-06 07:19:36.000000000 +0800
+++ /home/iamben/tmp/ports/security/knock/files/knockd.in	2012-08-27 21:17:16.335874460 +0800
@@ -27,7 +27,6 @@
 : ${knockd_flags="-d"}
 
 command="%%PREFIX%%/bin/knockd"
-command_args=${knockd_flags}
 pidfile="/var/run/knockd.pid"
 required_files=${knockd_conf}