* subversion/tests/cmdline/depth_tests.py   (upgrade_from_above): Clone the sandbox instead of trying to clean from     within the test. The cleaning code frequently failed to remove all files     when testing BDB via mod_dav_svn and svnserve. (Especially on Windows     where files can't be deleted while some process has a handle open)
* subversion/tests/cmdline/depth_tests.py
  (upgrade_from_above): Clone the sandbox instead of trying to clean from
    within the test. The cleaning code frequently failed to remove all files
    when testing BDB via mod_dav_svn and svnserve. (Especially on Windows
    where files can't be deleted while some process has a handle open)

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion