fix exception handling bug in void api
fix exception handling bug in void api

duydb2/thriftpy,itnihao/thriftpy,maralla/thriftpy,maralla/thriftpy,adsharma/flattools,eleme/thriftpy,halfcrazy/thriftpy,eleme/thriftpy,duydb2/thriftpy,mariusvniekerk/thriftpy,dan-blanchard/thriftpy,keitheis/thriftpy,keitheis/thriftpy,misakwa/thriftpy,mariusvniekerk/thriftpy,importcjj/thriftpy,misakwa/thriftpy,maralla/thriftpy,OctavianLee/thriftpy,dan-blanchard/thriftpy,OctavianLee/thriftpy,itnihao/thriftpy,adsharma/flattools,importcjj/thriftpy,itnihao/thriftpy,halfcrazy/thriftpy,spladug/thriftpy,OctavianLee/thriftpy,misakwa/thriftpy,duydb2/thriftpy,spladug/thriftpy,mariusvniekerk/thriftpy,adsharma/flattools