svn-status-show-svn-diff: Added support to show non recursive diffs
svn-status-show-svn-diff: Added support to show non recursive diffs

* trunk/contrib/client-side/emacs/psvn.el:
  (svn-status-show-svn-diff): Show a non recursive diff, when called with
    a negative prefix argument.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@866575 13f79535-47bb-0310-9956-ffa450edef68

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