rem: case 0: break;
context: main (int argc, char **argv){  char *tty;  int optc;  program_name = argv[0];  setlocale (LC_ALL, "");  bindtextdomain (PACKAGE, LOCALEDIR);  textdomain (PACKAGE);  close_stdout_set_status (3);  atexit (close_stdout);  silent = 0;  while ((optc = getopt_long (argc, argv, "s", longopts, NULL)) != -1)    {      switch (optc)	{	case 0:	  break;	case 's':	  silent = 1;	  break;	case_GETOPT_HELP_CHAR;	case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);	default:	  usage (2);	}    }  if (optind != argc)    error (0, 0, _("ignoring all arguments"));  tty = ttyname (0);  if (!silent)    {      if (tty)	puts (tty);      else	puts (_("not a tty"));    }  exit (isatty (0) ? 0 : 1);}