fix timing issue in logstream test
fix timing issue in logstream test

kenegozi/kudu,puneet-gupta/kudu,badescuga/kudu,duncansmart/kudu,badescuga/kudu,badescuga/kudu,WeAreMammoth/kudu-obsolete,duncansmart/kudu,EricSten-MSFT/kudu,duncansmart/kudu,juvchan/kudu,juvchan/kudu,uQr/kudu,juvchan/kudu,dev-enthusiast/kudu,juoni/kudu,dev-enthusiast/kudu,badescuga/kudu,uQr/kudu,oliver-feng/kudu,WeAreMammoth/kudu-obsolete,juoni/kudu,MavenRain/kudu,puneet-gupta/kudu,uQr/kudu,barnyp/kudu,EricSten-MSFT/kudu,shibayan/kudu,mauricionr/kudu,MavenRain/kudu,shanselman/kudu,WeAreMammoth/kudu-obsolete,barnyp/kudu,sitereactor/kudu,bbauya/kudu,oliver-feng/kudu,projectkudu/kudu,shrimpy/kudu,EricSten-MSFT/kudu,mauricionr/kudu,shanselman/kudu,barnyp/kudu,chrisrpatterson/kudu,YOTOV-LIMITED/kudu,projectkudu/kudu,juvchan/kudu,puneet-gupta/kudu,shibayan/kudu,kali786516/kudu,shrimpy/kudu,bbauya/kudu,dev-enthusiast/kudu,sitereactor/kudu,uQr/kudu,shrimpy/kudu,duncansmart/kudu,sitereactor/kudu,kali786516/kudu,mauricionr/kudu,kenegozi/kudu,chrisrpatterson/kudu,shibayan/kudu,puneet-gupta/kudu,chrisrpatterson/kudu,YOTOV-LIMITED/kudu,shibayan/kudu,bbauya/kudu,MavenRain/kudu,dev-enthusiast/kudu,YOTOV-LIMITED/kudu,juoni/kudu,kenegozi/kudu,barnyp/kudu,shanselman/kudu,puneet-gupta/kudu,YOTOV-LIMITED/kudu,kali786516/kudu,juvchan/kudu,shrimpy/kudu,sitereactor/kudu,mauricionr/kudu,kenegozi/kudu,badescuga/kudu,chrisrpatterson/kudu,projectkudu/kudu,juoni/kudu,shibayan/kudu,MavenRain/kudu,projectkudu/kudu,projectkudu/kudu,EricSten-MSFT/kudu,oliver-feng/kudu,EricSten-MSFT/kudu,sitereactor/kudu,kali786516/kudu,oliver-feng/kudu,bbauya/kudu