anchor.diff:        Error = "Malformed option: ~w",
         opt_error(Error, [T], input)
     end.
  +
  +%%%-----------------------------------------------------------------------------
  +
  +fix_synonyms(Options) ->
  +  Map =
  +    fun(Key) ->
  +        hd([R || {K, R} <- synonyms() ++ [{Key, Key}], K =:= Key])
  +    end,
  +  lists:keymap(Map, 1, Options).
   
   %%%-----------------------------------------------------------------------------
   
  
positive.code:     nolong}
     ].
  
  multiple_allowed() ->
    [ exclude_module
    , ignore_error
  
negative.code:     [ fun proplists:unfold/1
      , fun set_verbosity/1
      , fun assert_tuples/1
      , fun fix_synonyms/1
      , fun open_files/1
      , fun add_to_path/1
      , fun add_missing_file/1
  