Followup to r29659: *really* fix a bunch of error leaks in the svnserve Cyrus SASL implementation.
Followup to r29659: *really* fix a bunch of error leaks in the
svnserve Cyrus SASL implementation.

* subversion/svnserve/cyrus_auth.c
  (write_failure): New wrapper around svn_ra_svn_write_cmd_failure
   which clears its error argument.
  (fail_cmd, cyrus_auth_request): Use write_failure.

Found by: ehu

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