Fix a bug introduced in r1336471: the PATH value was dropped.
Fix a bug introduced in r1336471: the PATH value was dropped.

* subversion/libsvn_ra_serf/serf.c:
  (fetch_path_props): fetch the props for PATH, not the session root

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion