- printf("%s: invalid option \"%s\"!\n",
- PACKAGE_NAME, argv[i]);
- printf("Try \"%s --help\" for more information.\n",
- PACKAGE_NAME);
- exit(1);
+ fprintf(stderr, "%s: invalid option \"%s\"!\n",
+ PACKAGE_NAME, argv[i]);
+ fprintf(stderr, "Try \"%s --help\" for more information.\n",
+ PACKAGE_NAME);
+ exit(2);