fix sample code. from openbsd.
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@ -1,4 +1,4 @@
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.\" $NetBSD: getopt.3,v 1.22 2002/02/07 09:24:06 ross Exp $
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.\" $NetBSD: getopt.3,v 1.23 2002/08/10 17:25:01 yamt Exp $
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.\"
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.\" Copyright (c) 1988, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -33,7 +33,7 @@
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.\"
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.\" @(#)getopt.3 8.5 (Berkeley) 4/27/95
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.\"
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.Dd April 27, 1995
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.Dd August 11, 2002
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.Dt GETOPT 3
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.Os
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.Sh NAME
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@ -248,7 +248,7 @@ The following code fragment works in most cases.
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int length;
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char *p;
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while ((c = getopt(argc, argv, "0123456789")) != -1)
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while ((c = getopt(argc, argv, "0123456789")) != -1) {
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switch (c) {
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case '0': case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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