Update powerwall.sh

powerwall.sh

@@ -194,7 +194,7 @@ CHECKTEMP_SERVICE(){
 						temp_crit=$(echo ${SENSOR} | cut -d'p' -f2 | awk '/ / {print $4}' | sed -e 's/C//g');	temp_crit=${temp_crit/ /}
 						temp_crit_sys=$(echo ${SENSOR} | cut -d'p' -f2 | awk '/ / {print $4}' | sed -e 's/C//g');	temp_crit=${temp_crit/ /}
 						vSENSOR=$(echo ${SENSOR} | cut -d'T' -f1 | xargs)
-						SENSOR="${SENSORa}-${vSENSOR/ /_}"
+						SENSOR="${SENSORa}-${vSENSOR// /_}"
 										
 					fi				
 					datetime=`date +'%Y-%m-%d %H:%M:%S'`