Log several fatal errors as such using the logging module.
Log several fatal errors as such using the logging module.

* subversion/tests/cmdline/svntest/actions.py
  (setup_pristine_greek_repository, guarantee_empty_repository,
   guarantee_greek_repository): Replace print statements with logger.error()
    calls.

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