In 'fsfsfixer': try to fix bad offsets in 'text:' references in addition to
in 'DELTA' references.

* contrib/server-side/fsfsfixer/fixer/fix-rev.py
  (fix_rep_ref): Rename from fix_delta_ref(). Handle 'text:' lines as well
    as 'DELTA' lines.
  (handle_one_error): Try to fix 'text:' references in addition to 'DELTA'
    references. Expand the commentary.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1554986 13f79535-47bb-0310-9956-ffa450edef68