Copyright for readline library

[Kari Pahula]

On Sat, Jan 17, 2009 at 11:15:25AM +0200, Kari Pahula wrote:
> I would use readline instead of editline to build ghc6 on Debian, but

In the end, I didn't.  At first, it wouldn't detect and use
libedit-dev but on the later builds, I saw that it did.  Some problem
between the chair and the monitor, most likely.

Still, this doesn't look good and bears to be fixed, IMHO:

> -- Copyright   :  (c) unknown