Follow up r36894.
Follow up r36894.

* subversion/mod_dav_svn/repos.c
  (get_parent_path): We have a URI to split not a dirent.

Suggested by: rhuijben
              gstein


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@876990 13f79535-47bb-0310-9956-ffa450edef68

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