Fix a doc string.
Fix a doc string.

* subversion/svn/cl.h
  (svn_cl__opt_state_t): Remove the outdated claim as to what uses the
    'revision_ranges' field; add more detail to it.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@891690 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion