Re: tail --follow=name --follow=descriptor: both allowed?

[Jim Meyering]

Bernhard Voelker wrote:
> For tail, both 'follow' modes are allowed:
>
>   $ src/tail --follow=name --follow=descriptor /tmp/x
>
> It obviously uses the latter option.
>
> Should
> a) this behaviour be documented in the info page?
> b) tail proceed with a warning?
> c) such a combination be rejected?
> d) we do nothing?

Probably (d), since it is common practice for tools to let
the final mode-selection option override any preceding ones.
E.g., the -H, -L, -P triple accepted by ch???, cp, du and ls.

Do you think that some would benefit from added documentation?