Within the implementation of svn_repos_authz_read2() only canonicalize
repos relative URLs.

* subversion/libsvn_repos/authz.c
  (authz_retreive_config_repo): Don't canonicalize dirent here but rather ...
  (authz_retrieve_config): canonicalize repos relative URLs here.



git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1429147 13f79535-47bb-0310-9956-ffa450edef68