Experiment on matching on the daemon_user is over. It needs more work.

portmap isn't happy with it as reported by naddy@

src/etc/rc.d/rc.subr

@@ -1,4 +1,4 @@
-#	$OpenBSD: rc.subr,v 1.112 2016/04/27 17:29:50 ajacoutot Exp $
+#	$OpenBSD: rc.subr,v 1.113 2016/04/28 09:15:16 ajacoutot Exp $
 #
 # Copyright (c) 2010, 2011, 2014-2016 Antoine Jacoutot <ajacoutot@openbsd.org>
 # Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -155,15 +155,15 @@ rc_start() {
 }
 
 rc_check() {
-	pgrep -T "${daemon_rtable}" -U "${daemon_user}" -q -xf "${pexp}"
+	pgrep -T "${daemon_rtable}" -q -xf "${pexp}"
 }
 
 rc_reload() {
-	pkill -T "${daemon_rtable}" -U "${daemon_user}" -HUP -xf "${pexp}"
+	pkill -T "${daemon_rtable}" -HUP -xf "${pexp}"
 }
 
 rc_stop() {
-	pkill -T "${daemon_rtable}" -U "${daemon_user}" -xf "${pexp}"
+	pkill -T "${daemon_rtable}" -xf "${pexp}"
 }
 
 rc_cmd() {

src/etc/rc.d/sndiod

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $OpenBSD: sndiod,v 1.3 2016/04/27 17:29:08 ajacoutot Exp $
+# $OpenBSD: sndiod,v 1.4 2016/04/28 09:15:16 ajacoutot Exp $
 
 daemon="/usr/bin/sndiod"
 
@@ -8,16 +8,4 @@ daemon="/usr/bin/sndiod"
 
 rc_reload=NO
 
-rc_check() {
-	pgrep -T "${daemon_rtable}" -U _sndio -q -xf "${pexp}"
-}
-
-rc_reload() {
-	pkill -T "${daemon_rtable}" -U _sndio -HUP -xf "${pexp}"
-}
-
-rc_stop() {
-	pkill -T "${daemon_rtable}" -U _sndio -xf "${pexp}"
-}
-
 rc_cmd $1