Add one symbol to allow the 1.6 client to link against the 1.7 libraries.
Add one symbol to allow the 1.6 client to link against the 1.7 libraries.

* subversion/libsvn_subr/opt.c
  (svn_opt__eat_peg_revisions): New.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@944183 13f79535-47bb-0310-9956-ffa450edef68

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