nut: Fix unset of runas user (upsmon)

Running as non-root was failing due to misplace local keyword
causing runas to be unset from calling value.

Signed-off-by: Daniel F. Dickinson <cshored@thecshore.com>

net/nut/files/nut-monitor.init

@@ -6,11 +6,13 @@ UPSMON_C=/var/etc/nut/upsmon.conf
 
 nut_upsmon_conf() {
 	local cfg="$1"
+	local RUNAS val optval
 
 	echo "# Config file automatically generated from UCI config" > "$UPSMON_C"
 
-	config_get runas "$cfg" runas
-	[ -n "$runas" ] && echo "RUN_AS_USER $runas" >> $UPSMON_C
+	config_get RUNAS "$cfg" runas
+	[ -n "$RUNAS" ] && echo "RUN_AS_USER $RUNAS" >> "$UPSMON_C"
+	runas="$RUNAS"
 
 	config_get val "$cfg" minsupplies 1
 	echo "MINSUPPLIES $val" >> "$UPSMON_C"
@@ -143,7 +145,6 @@ nut_upsmon_add() {
 }
 
 build_config() {
-	local runas
 	mkdir -m 0750 -p "$(dirname "$UPSMON_C")"
 
 	config_load nut_monitor
@@ -162,6 +163,7 @@ build_config() {
 }
 
 start_service() {
+	local runas
 	local havemon havems
 	build_config
 
@@ -178,6 +180,7 @@ start_service() {
 
 reload_service() {
 	if pgrep upsmon >/dev/null 2>/dev/null; then
+		local runas
 		build_config
 		/usr/sbin/upsmon -c reload
 	else