small fix of simple_logger
small fix of simple_logger

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