Prevent Windows buildbots from unnecessarily clobbering directories
Prevent Windows buildbots from unnecessarily clobbering directories

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@11671 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh