Update to root-delegation-only exclude statement example.

[Randy Bush]

> It has come to ISC's attention that there are non-delegation records=20
> present in the following zones:
> 
> ar
> id
> md
> no
> name
> pf
> tw
> 
> Accordingly, we have added them to the list of zones where
> non-delegation data may be expected. Many administrators will want to
> include these zones in the "exclude" portion if they use the
> "root-delegation-only" option. Details may be found at:
> 
> http://www.isc.org/products/BIND/delegation-only.html
> 
> If you know of any other zones with non-delegation records, please let us=20
> know.
> =2D --=20
> Peter_Losher at isc.org | ISC | OpenPGP 0xE8048D08 | "The bits must flow"
> =2D----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.2.3 (FreeBSD)
> 
> iD8DBQE/htm7PtVx9OgEjQgRAhW2AJ9zNdUwEYHaCejUEP9p7Yb3t6W1EgCfWv/R
> ce9oyzEIXy6ikxaDvDs5rfo=3D
> =3DqrK2
> =2D----END PGP SIGNATURE-----

we are breaking the internet for political reasons.  please tell us if your
particular piece, or any you know, are affected.

pfui!