fix logstream functional test
fix logstream functional test

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