Update powerwall.sh

powerwall.sh

@@ -25,7 +25,7 @@ CHECKTEMP(){
 	fi
 
 }
-CHECKTEMPSENSOR()}{
+CHECKTEMPSENSOR(){
 	mqtt_message=`${mqtt_conn} -t tele/${1}/SENSOR -C 1`
 	echo $mqtt_message | cut -d':' -f 6 | cut -d',' -f 1 | read temp_c
 	if [ "$temp_c" != "null" ] && [ "$temp_c" != "" ]; then