Tweak the original adjust_relative_to_repos_root() function to always return
the repository relative path, even when the anchor doesn't match the
wcroot.

* subversion/libsvn_client/diff.c
  (adjust_relative_to_repos_root): Rename function to ...
  (make_repos_relpath): ... this and only use the anchor to construct
    a local path. This removes the hack of removing the wcroot from
    the provided path. Update documentation and remove unneeded argument.

  (adjust_paths_for_diff_labels): Update documentation.

  (display_prop_diffs): Update documentation. Remove unused argument.
    Update caller. Rename git specific variables.

  (diff_cmd_baton): Remove unused variable.

  (diff_props_changed): Update caller.
  (diff_content_changed): Update caller.

  (diff_repos_wc,
   svn_client_diff6,
   svn_client_diff_peg6): Stop setting baton variable.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1427912 13f79535-47bb-0310-9956-ffa450edef68