rem: if (argc != 1)
add: if (optind < argc)
context: main (int argc, char **argv){  program_name = argv[0];  setlocale (LC_ALL, "");  bindtextdomain (PACKAGE, LOCALEDIR);  textdomain (PACKAGE);  atexit (close_stdout);  parse_long_options (argc, argv, PROGRAM_NAME, PACKAGE, VERSION,		      AUTHORS, usage);  if (argc != 1)    error (0, 0, _("ignoring all arguments"));  sync ();  exit (EXIT_SUCCESS);}