Partially revert r39860 to fix a few libsvn_ra_serf tests.
Partially revert r39860 to fix a few libsvn_ra_serf tests.

* subversion/libsvn_ra_serf/serf.c
  (svn_ra_serf__get_dir): Handle path as uri, or the path walker will not
    correctly find the parent of the directory.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@880018 13f79535-47bb-0310-9956-ffa450edef68

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