* subversion/include/svn_ra.h
* subversion/include/svn_ra.h

  (svn_ra_callbacks_t): Re-add some usage comments that were lost in
  my last commit.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@841587 13f79535-47bb-0310-9956-ffa450edef68

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