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