better use of bad arguments

tools/fimgstats.c

@@ -96,15 +96,20 @@ if (argc == 1) {
 	exit(0);
 	}
 
-while ((opt = getopt(argc, argv, "cv")) != -1) {
+while ((opt = getopt(argc, argv, "chv")) != -1) {
 	switch(opt) {
 		case 'c':	make_csv++;		break;
 		case 'v':	verbosity++;		break;
 
+		case 'h':	/* tombe dedans */
 		default:	help(1);		exit(1);
 		}
 	}
 
+if (NULL==argv[optind]) {
+	fprintf(stderr, "optind %d is wtf\n", optind);
+	return 1;
+	}
 foo = various_numbers_from_file(argv[optind], 0);
 if (foo) {
 	fprintf(stderr, "got a %d ?\n", foo);