anchor.diff:  non_atomic_refac_loop(Parent, State=#state{cmds={non_atomic, CRs},
                                              mode=Mode,
                                              changed_files=Changes}) ->
  -    wrangler_io:format("not atomic loop: changed files:\n~p\n", [{self(),sets:to_list(Changes)}]),
  +    %%wrangler_io:format("not atomic loop: changed files:\n~p\n", [{self(),sets:to_list(Changes)}]),
       receive 
           {From, get_next_command, PrevResult} ->
  -            wrangler_io:format("PreResult:\n~p\n", [PrevResult]),
  +            %%wrangler_io:format("PreResult:\n~p\n", [PrevResult]),
               ModifiedSoFar =update_modified_files(PrevResult,Changes),
  -            wrangler_io:format("Sofar:\n~p\n", [sets:to_list(ModifiedSoFar)]),
  +            %%wrangler_io:format("Sofar:\n~p\n", [sets:to_list(ModifiedSoFar)]),
               case generate_cmds(CRs) of 
                   [] ->
                       From !{get_next_command, Parent, [ok, sets:to_list(ModifiedSoFar)]};
  
positive.code: 
  -include("../include/wrangler_internal.hrl").
  
  -define(ENABLE_DEBUG, true).
   
  -ifdef(ENABLE_DEBUG).
  -define(wrangler_debug(__String, __Args), ?wrangler_io(__String, __Args)).
  
negative.code:                     {ok, none, [], {error, Msg}}
              end;
          {'EXIT', _ChildrenPid, Reason} ->            
              {ok, none, [], {error, Reason}};
          Others ->
              Msg=format_msg("Wrangler error: unexpected Message received: ~p.\n",
                             Others),
              {ok, none, [], {error, Msg}}            
      end.
  