Complain if unknown argument is passed
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@ -47,10 +47,12 @@ int main(int argc, char **argv)
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case 'h':
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print_usage();
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return 0;
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case 'f':
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format = optarg;
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break;
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case '?':
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fprintf(stderr, "Unknown argument. Try -h\n");
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return -1;
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}
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}
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