Mark usage function as __dead2 in programs where it does not return
In most cases, usage does not return, so mark them as __dead2. For the cases where they do return, they have not been marked __dead2. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/735
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@ -58,7 +58,7 @@ static void exit(int) __dead2;
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static void load(const char *);
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static int dskread(void *, uint64_t, int);
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static void usage(void);
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static void usage(void) __dead2;
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static void bcopy(const void *src, void *dst, size_t len);
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static void bzero(void *b, size_t len);
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