A follow-up to r22503 fixing a naming error.
A follow-up to r22503 fixing a naming error.

* subversion/tests/cmdline/svntest/actions.py
  (setup_pristine_repository): Use main.file_write() instead of
   svntest.main.file_write(), as we import the function under that
   name.

Found by: ehu

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