Why not remove the appendix?

[Bruno Wolff III]

On Sun, Dec 13, 2009 at 17:52:58 -0600,
  "Robert G. (Doc) Savage" <dsavage at peaknet.net> wrote:
> Why do we continue to refer to "core" in package names -- fc13 rather
> than f13 -- long after Core and Extras were merged? Enquiring minds want
> to know.

The short answer is that it breaks things.

This has been discussed on the lists several times including about a month
ago.