firewall: the firewall did not start properly on boot

https://dev.openwrt.org/ticket/17593

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 42233

package/network/config/firewall/files/firewall.init

@@ -60,6 +60,6 @@ reload_service() {
 boot() {
 	# Be silent on boot, firewall might be started by hotplug already,
 	# so don't complain in syslog.
-	QUIET=1
+	QUIET=-q
 	start
 }