Severity: wishlist

Please find attached a small visual improvement for the splash screen,
or rather the AUTHORS file that is reachable from the splash screen.
It comes in the form of a major mode for etc/AUTHORS that has some basic
font-locking and nothing else.

The motivation for this is basically that I have clicked the "AUTHORS"
button on the splash screen and found the file thus reached to be a bit
bare-bone visually.  (It's just a text file.)  Other software tend to
have a bit more formatting, and it's nice to show off in this small way
that Emacs has such capabilities as well.

We could of course live without it, but there's not much reason to.