Allow svn_opt_revision_working as svn_opt_revision_t parameter values to svn_client_cat2().
Allow svn_opt_revision_working as svn_opt_revision_t parameter values
to svn_client_cat2().

* subversion/libsvn_client/cat.c
  (svn_client_cat2): Allow svn_opt_revision_working for PEG_REVISION
   and REVISION.

Patch by: Stefan Küng <tortoisesvn@gmail.com>


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@863630 13f79535-47bb-0310-9956-ffa450edef68

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