Follow up r37075.
Follow up r37075.

* subversion/tests/cmdline/upgrade_tests.py
  (): Import sys.
  (replace_sbox_with_tarfile): Pass absolute path for the tar file.

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