Following up on r1066006, add a few more special character in url canonicalization tests.
Following up on r1066006, add a few more special character in url
canonicalization tests.

* subversion/tests/libsvn_subr/dirent_uri-test.c
  (test_uri_canonicalize,
   test_uri_is_canonical): Improve coverage for special character
     handling.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1066019 13f79535-47bb-0310-9956-ffa450edef68

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