po: fix a typo in german firewall translation
po: fix a typo in german firewall translation


deepak78/luci,deepak78/luci,deepak78/luci,8devices/luci,8devices/luci,8devices/luci,deepak78/luci,8devices/luci,8devices/luci,deepak78/luci,8devices/luci,deepak78/luci,deepak78/luci,deepak78/luci