makefs: remove vestigial '?' cases from top-level getopt(3) loop
getopt(3) returns '?' when it encounters a flag not present in the in the optstring or if a flag is missing its option argument. We can handle this case with the "default" failure case with no loss of legibility. Obtained from: OpenBSD makefs.c 1.22
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@ -273,7 +273,6 @@ main(int argc, char *argv[])
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fsoptions.sparse = 1;
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break;
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case '?':
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default:
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usage(fstype, &fsoptions);
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/* NOTREACHED */
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