comment fix according to code review
comment fix according to code review

imzhenyu/rDSN,lshmouse/rDSN,lshmouse/rDSN,ykwd/rDSN,qinzuoyan/rDSN,imzhenyu/rDSN,qinzuoyan/rDSN,glglwty/rDSN,pandaworrior/rDSN,lshmouse/rDSN,pandaworrior/rDSN,ykwd/rDSN,Microsoft/rDSN,shengofsun/rDSN,Microsoft/rDSN,glglwty/rDSN,mcfatealan/rDSN,mcfatealan/rDSN,mcfatealan/rDSN,glglwty/rDSN,Microsoft/rDSN,imzhenyu/rDSN,shengofsun/rDSN,Microsoft/rDSN,glglwty/rDSN,pandaworrior/rDSN,ykwd/rDSN,lshmouse/rDSN,imzhenyu/rDSN,imzhenyu/rDSN,ykwd/rDSN,mcfatealan/rDSN,imzhenyu/rDSN,lshmouse/rDSN,qinzuoyan/rDSN,lshmouse/rDSN,pandaworrior/rDSN,shengofsun/rDSN,pandaworrior/rDSN,shengofsun/rDSN,shengofsun/rDSN,ykwd/rDSN,glglwty/rDSN,qinzuoyan/rDSN,Microsoft/rDSN,Microsoft/rDSN,qinzuoyan/rDSN,Microsoft/rDSN,imzhenyu/rDSN,lshmouse/rDSN,shengofsun/rDSN,qinzuoyan/rDSN,shengofsun/rDSN,shengofsun/rDSN,qinzuoyan/rDSN,Microsoft/rDSN,lshmouse/rDSN,qinzuoyan/rDSN,imzhenyu/rDSN