find: Allow -type d without statting everything.
fts(3) detects directories even in FTS_NOSTAT mode (so it can descend into them). No functional change is intended, but find commands that use -type d but no primaries that still require stat/lstat calls make considerably fewer system calls.
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@ -1552,7 +1552,12 @@ c_sparse(OPTION *option, char ***argvp __unused)
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int
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f_type(PLAN *plan, FTSENT *entry)
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{
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return (entry->fts_statp->st_mode & S_IFMT) == plan->m_data;
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if (plan->m_data == S_IFDIR)
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return (entry->fts_info == FTS_D || entry->fts_info == FTS_DC ||
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entry->fts_info == FTS_DNR || entry->fts_info == FTS_DOT ||
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entry->fts_info == FTS_DP);
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else
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return (entry->fts_statp->st_mode & S_IFMT) == plan->m_data;
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}
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PLAN *
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@ -1563,7 +1568,8 @@ c_type(OPTION *option, char ***argvp)
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mode_t mask;
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typestring = nextarg(option, argvp);
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ftsoptions &= ~FTS_NOSTAT;
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if (typestring[0] != 'd')
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ftsoptions &= ~FTS_NOSTAT;
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switch (typestring[0]) {
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case 'b':
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