[issue2753] Fix issue 2753.
[issue2753] Fix issue 2753.

Relax requests aimed at the repo Parent path from authz control.

* subversion/mod_authz_svn/mod_authz_svn.c
  (create_authz_svn_dir_config): Canonicalize conf->base_path.
  (req_check_access): When canonicalized 'uri' and 'conf->base_path' are same
   allow the request.
  (access_checker, check_user_id, auth_checker): 
   Initialize repos_path to 'NULL' otherwise it can point
   to stray values when req_check_access relaxes certain requests without
   initialising the out parameters.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@933194 13f79535-47bb-0310-9956-ffa450edef68

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