services: fix sort service lists in installer

features.in/services/install2/image-scripts.d/10-services

@@ -51,7 +51,7 @@ for i in $GLOBAL_SYSTEMD_SERVICES_DISABLE; do switch $i off; done
 SERVICES="$GLOBAL_DEFAULT_SERVICES_ENABLE $GLOBAL_DEFAULT_SERVICES_DISABLE"
 SERVICES="$SERVICES $GLOBAL_SERVICES_ENABLE $GLOBAL_SERVICES_DISABLE"
 SERVICES="$SERVICES $GLOBAL_SYSTEMD_SERVICES_ENABLE $GLOBAL_SYSTEMD_SERVICES_DISABLE"
-SERVICES="$(echo $SERVICES | sort -u)"
+SERVICES="$(echo $SERVICES | tr " " "\n" | sort -u)"
 
 for i in $SERVICES; do
 	onoff="$(shell_config_get "$STATUS" "$i")"