Update usage.
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@ -22,9 +22,10 @@ void draw_greeting() {
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}
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void usage() {
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printf("usage: %s [-v|--version] [-h|--help]\n", program_name);
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printf("usage: %s [-v|--version] [-h|--help] [-p|--passes=NUMBER]\n", program_name);
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printf(" -v, --version Show the version\n");
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printf(" -h, --help Show this message\n");
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printf(" -p, --passes Number of passes through the deck\n");
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}
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void version() {
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