anchor.diff:  				end, Positions)
   	  end,
       Msg = lists:flatmap(Fun, FileAndPositions),
  -    ?wrangler_io(Msg, []).
  +    ?log_warning(Msg).
   
   output_renamed_atom_info(FileAndExprs) ->
       Fun = fun ({FileName, Exprs}) ->
  
positive.code: 		  lists:flatmap(Fun0, Exprs)
  	  end,
      Msg = lists:flatmap(Fun, FileAndExprs),
      ?wrangler_io(Msg, []).
  
negative.code: 
  output_atom_not_renamed_warnings([], _Msg) -> ok;
  output_atom_not_renamed_warnings(NotRenamed, Msg) ->
      ?log_warning(Msg),
      output_not_renamed_atom_info(NotRenamed).
  output_atom_renamed_warnings([], _Msg) -> ok;
  output_atom_renamed_warnings(Renamed, Msg) ->
      ?log_warning(Msg),
      output_renamed_atom_info(Renamed).
  output_not_renamed_atom_info(FileAndPositions) ->
      Fun = fun ({FileName, Positions}) ->
  