Refine operational logging for blame.
Refine operational logging for blame.

* subversion/mod_dav_svn/reports/file-revs.c
  (dav_svn__file_revs_report): Log include-merged-revisions as an
    optional string at the end of the operational log action rather
    than logging a separate blame-merge-sensitive action.

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