- /* 1003.2 specifies the format of this message. */
- fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c);
+ if (posixly_correct)
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c);
+ else
+ fprintf (stderr, "%s: invalid option -- %c\n", argv[0], c);