Update powerwall.sh

powerwall.sh

@@ -1245,7 +1245,7 @@ LOGROTATE(){
 	# sleep 5s
 	# STARTALL_SERVICES
 	
-	backupstokeep=(`ls -d ${PW_LOGARCHIVE}/* 2> /dev/null | sort | tail -4`)
+	backupstokeep=(`ls -d ${PW_LOGARCHIVE}/* 2> /dev/null | sort | tail -12`)
 	for folder in $(ls -d ${PW_LOGARCHIVE}/* | sort -r); do
 		echo -en "${folder} = "
 		keep=0