Fix the broken diff tests.
Fix the broken diff tests.

* subversion/mod_dav_svn/util.c
  (dav_svn_simple_parse_uri): Handle repository root URIs.

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