taker_group_ok(): accept empty gr_mem#9
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If the site is using User Private Groups, and the site chooses not to list primary groups in the list of supplementary groups, the struct group returned by getgrnam() may have an empty gr_mem. Accept an empty gr_mem as equivalent to a gr_mem which includes only the taker's primary group.
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If the site is using User Private Groups, and the site chooses not to list primary groups in the list of supplementary groups, the struct group returned by getgrnam() may have an empty gr_mem.
Accept an empty gr_mem as equivalent to a gr_mem which includes only the taker's primary group.