* subversion/tests/cmdline/svnadmin_tests.py
  (freeze_freeze): Following up on r1589476, entirely avoid creating a
    working copy within this test.  We only need it as a placeholder for the
    temporary 'arg-file', so we might as well use the Sandbox.get_tempname()
    helper routine.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1615551 13f79535-47bb-0310-9956-ffa450edef68