create /etc/isakmpd/crls to fix a warning when starting isakmpd

from Mathieu Sauve-Frankel m dot sauve at secureops dot com
ok brad@

src/etc/mtree/4.4BSD.dist

@@ -1,4 +1,4 @@
-#	$OpenBSD: 4.4BSD.dist,v 1.150 2003/03/28 21:32:30 jmc Exp $
+#	$OpenBSD: 4.4BSD.dist,v 1.151 2003/04/09 15:25:16 todd Exp $
 
 /set type=dir uname=root gname=wheel mode=0755
 # .
@@ -56,6 +56,11 @@ certs
 # ./etc/isakmpd/certs
 ..
 
+# ./etc/isakmpd/crls
+crls
+# ./etc/isakmpd/crls
+..
+
 # ./etc/isakmpd/keynote
 keynote
 # ./etc/isakmpd/keynote