Fix the sendVoice method's error
Fix the sendVoice method's error

countdracular/wechat,klbjlabs/wechat,adrianzhang/wechat,MarcoPai/wechat,kmshi/wechat,turingou/wechat,boyouzhao/wechat,flybird119/wechat,nesta97432/wechat,JKshare/wechat,Misfit-Wearables/wechat,coogleyou/wechat,beesui/wechat-iot,iamcc/wechat,junjun16818/wechat,gududefengzhong/wechat-4,15921050052/wechat,guo-yu/wechat,IceWilder/wechat,wxhuang/wechat,xc145214/wechat,boyouzhao/wechat,jsRuner/wechat,dut3062796s/wechat-1,boyouzhao/wechat,Jonekee/wechat,jiangbophd/wechat