[ramips] make sure errors get sent to /dev/null

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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35988 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ramips/base-files/etc/diag.sh

@@ -128,7 +128,7 @@ set_state() {
 
 	case "$1" in
 	preinit)
-		insmod leds-gpio
+		insmod leds-gpio 2> /dev/null
 		status_led_blink_preinit
 		;;
 	failsafe)