anchor.diff:    FinalOptions =
       try
         Passes =
  -        [ fun rename_equivalent/1
  +        [ fun proplists:unfold/1
  +        , fun rename_equivalent/1
           , fun add_missing_getopt_defaults/1
           , fun(O) ->
                 add_missing_defaults([{verbosity, ?DEFAULT_VERBOSITY}], O)
             end
  -        , fun proplists:unfold/1
           , fun finalize_aux/1
           , fun(O) ->
                 add_missing_defaults(
  
positive.code:       opt_error(Error, [?ldebug - 1])
    end,
    finalize(NewRest, [{verbosity, Verbosity}|Acc]);
  finalize([{Key, Value}|Rest], Acc) when Key =:= pa; Key =:=pz ->
    PathAdd =
      case Key of
        pa -> fun code:add_patha/1;
  
negative.code: rename_equivalent(Options) ->
    rename_equivalent(Options, []).
  
  rename_equivalent([{quiet, true}|Rest], Acc) ->
    case proplists:is_defined(verbosity, Rest ++ Acc) of
      true -> opt_error("'--verbosity' specified together with '--quiet'");
      false ->
  