Followup to r25265.  Parse and use the omit-log-text element in mod_dav_svn.
Followup to r25265.  Parse and use the omit-log-text element in mod_dav_svn.

* subversion/mod_dav_svn/reports/log.c
  (dav_svn__log_report): If the omit-log-text element is present, omit the log
  text in the log response.

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