rem: print_char (int c)
add: print_char (char c)
context: print_char (int c){  if (tabify_output)    {      if (c == ' ')	{	  ++spaces_not_printed;	  return;	}      else if (spaces_not_printed > 0)	print_white_space ();      /* Nonprintables are assumed to have width 0, except '\b'. */      if (!ISPRINT (c))	{	  if (c == '\b')	    --output_position;	}      else	++output_position;    }  putchar (c);}