Fixed build, allow space within file path to 7zip executable.
Fixed build, allow space within file path to 7zip executable.

projectkudu/kudu,EricSten-MSFT/kudu,projectkudu/kudu,puneet-gupta/kudu,EricSten-MSFT/kudu,shibayan/kudu,puneet-gupta/kudu,shibayan/kudu,shibayan/kudu,puneet-gupta/kudu,EricSten-MSFT/kudu,puneet-gupta/kudu,projectkudu/kudu,projectkudu/kudu,shibayan/kudu,shibayan/kudu,EricSten-MSFT/kudu,projectkudu/kudu,EricSten-MSFT/kudu,puneet-gupta/kudu