bug#13993: 24.3.50; doc of `complete-with-action'

[Lars Ingebrigtsen]

"Drew Adams" <drew.adams@oracle.com> writes:

> The doc of `complete-with-action' should do more, however.  It should
> say what it does:
>
> If TABLE is a function then TABLE does all of the completing.  It is
> passed arguments STRING, PRED, and ACTION. (and refer to (or copy)
> existing doc about this).
>
> Else the behavior depends on the value of ACTION:
>
>  If `metadata' or a cons with car `boundaries' then return nil.
>  If nil, return (try-completion STRING TABLE PRED).
>  If t,   return (all-completions STRING TABLE PRED).
>  Else    return (test-completion STRING TABLE PRED).

I've now altered the doc string along the lines of what you suggest, but
less verbose.

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