fix retcode error for mcafee vscl
fix retcode error for mcafee vscl

hirokihamasaki/irma,hirokihamasaki/irma,quarkslab/irma,quarkslab/irma,quarkslab/irma,hirokihamasaki/irma,hirokihamasaki/irma,quarkslab/irma,hirokihamasaki/irma