Add a comment to slapd.rc showing how to bind to multiple URLs as it's not

obvious how to do this without breaking pexp, as done in databases/openldap,
aja@ reminded me to do openldap23 as well.

databases/openldap23/Makefile

@@ -1,10 +1,10 @@
-# $OpenBSD: Makefile,v 1.7 2012/04/28 10:52:08 ajacoutot Exp $
+# $OpenBSD: Makefile,v 1.8 2012/05/05 14:42:39 sthen Exp $
 
 COMMENT=	Open source LDAP software (server)
 
 DISTNAME=	openldap-2.3.43
 PKGNAME=	${DISTNAME:S/-/-server-/}
-REVISION=	9
+REVISION=	10
 
 CATEGORIES=	databases net
 

databases/openldap23/pkg/slapd.rc

@@ -1,10 +1,14 @@
 #!/bin/sh
 #
-# $OpenBSD: slapd.rc,v 1.3 2011/01/13 15:44:10 pea Exp $
+# $OpenBSD: slapd.rc,v 1.4 2012/05/05 14:42:39 sthen Exp $
 
 daemon="${TRUEPREFIX}/libexec/slapd"
 daemon_flags="-u _openldap"
 
+# To bind to multiple URLs, pass this to rc.d(8) via /etc/rc.conf.local:
+# slapd_flags="-u _openldap -h ldap:///\ ldaps:///"
+# Note the escaped space between URLs. ^^
+
 . /etc/rc.d/rc.subr
 
 rc_reload=NO