Fix a crash (endless loop) introduced in r34480. A reproduction recipe is in <http://svn.haxx.se/dev/archive-2008-12/0137.shtml>.
Fix a crash (endless loop) introduced in r34480. A reproduction recipe is in
<http://svn.haxx.se/dev/archive-2008-12/0137.shtml>.

Found by: Marc Haesen <Marc.Haesen@oneaccess-net.com>

* subversion/libsvn_wc/update_editor.c
  (in_skipped_tree): Stop traversing the path upwards when it reaches the
    root directory, as well as when it reaches an empty path.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@874631 13f79535-47bb-0310-9956-ffa450edef68

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