> You're not keen on either of my other suggestions, right?
>
>     cl-once-only-many, cl-once-only-these

No, I am really *really* not that enthusiastic about either of those
names.  `*-these' is completely out of the question, and `*-many'
is... fine, but IMO sounds worse than `*-multiple'.

> I guess I am hung up on how -multiple- is already used in CL names,
> but it comes *before* the things that are multiple.  But I believe you
> don't like cl-multiple-once-only.

`multiple' seems to be used exclusively in `cl-multiple-value-*' names,
so there is some possibility that this might maybe be confused as a part
of that suite, but I don't think it's a particularly significant one.

> The interdiff isn't too helpful to me here.  I'd prefer to review a
> complete patch against master.

Oops, sorry for the bad patch, I've attached the full diff.