fix response error tips, add command line usage and error return
fix response error tips, add command line usage and error return

meifamily/ptt-alertor,meifamily/ptt-alertor,meifamily/ptt-alertor,liam-lai/ptt-alertor,meifamily/ptt-alertor,liam-lai/ptt-alertor,liam-lai/ptt-alertor,liam-lai/ptt-alertor