Bug#267142: huh?

[Clint Adams <schizo@debian.org>]

> I didn't say that "debconf" is a non-POSIX shell feature.  Policy 10.4
> doesn't say that anyway.  It says your script should work with any
> Posix-compliant shell.  A script that says "debconf" doesn't.

Apparently I didn't actually understand.  Does it say that explicitly
or are you inferring that somehow?

> Well then if you don't like the list-of-shells approach, but you can't
> think of anything better, then that leaves list-of-shells as the most
> popular alternative.  (And I don't have any preferences about which
> shells are in that list, provided bash is.)

I think the current wording is better, though far from perfect.
Part of the point of 10.4 is that the list of shells is irrelevant.