anchor.diff:      binary:replace(Subject, Search, Replace, [global]).
   
   -spec str_replace(context(), line(),
  -    Search :: var_value(), Replace :: var_value(),
  -    Subject :: var_value(), Count :: var_value()) -> binary().
  +                  Search :: var_value(), Replace :: var_value(),
  +                  Subject :: var_value(), Count :: var_value()) -> binary().
   
   str_replace(Context, _Line, {_, Search}, {_, Replace}, {_, Subject},
               {Count,_}) ->
  
positive.code:     print/3,
      printf/3,
      sprintf/3,
      str_replace/5,
      str_replace/6,
      strtolower/3,
  
negative.code:     {print, [{alias, <<"echo">>}]},
      {printf, [pack_args]},
      {sprintf, [pack_args]},
      vprintf,
      vsprintf,
      str_replace,
      strtolower,
      strtoupper,
  