anchor.diff:      case safeio_sup:get_directory_guard(Path) of
           {ok, Port} ->
               case safeio_directory_guard:can_stat(Port, TimeOutMillis) of
  -                ok ->
  -                    true;
  -                _ ->
  -                    false
  +                ok -> true;
  +                _  -> false
               end;
           _ ->
               false
  
positive.code: %% @end
  %% ------------------------------------------------------------------------------
  -spec can_stat(file:filename()) -> boolean().
  can_stat(Path) ->
      can_stat(Path, 5000).
  
  %%------------------------------------------------------------------------------
  %% @doc
  
negative.code: %%------------------------------------------------------------------------------
  -spec is_regular(file:filename(), file:filename()) -> boolean().
  is_regular(RootDirectory, RelativePath) ->
      is_regular(RootDirectory, RelativePath, 2500).
  
  %%------------------------------------------------------------------------------
  %% @doc
  