silence chmod too, for non-writeable /var; fries

src/etc/rc.shutdown

@@ -1,4 +1,4 @@
-#	$OpenBSD: rc.shutdown,v 1.3 1999/07/20 16:51:04 deraadt Exp $
+#	$OpenBSD: rc.shutdown,v 1.4 1999/07/25 19:32:17 deraadt Exp $
 #
 # If it exists, this script is run at system-shutdown by reboot(8),
 # halt(8).
@@ -10,7 +10,7 @@ echo /etc/rc.shutdown in progress...
 
 # save part of our entropy pool for reuse on reboot
 dd if=/dev/urandom of=/var/db/host.random bs=1024 count=64 >/dev/null 2>&1
-chmod 600 /var/db/host.random
+chmod 600 /var/db/host.random >/dev/null 2>&1
 
 #
 # Your shell code goes here