replace uname -a informational string

[Perry Hutchison]

[restored the OP's Cc as requested in the initial post]

Erich Dollansky <erichsfreebsdlist at alogt.com> wrote:

> As somebody else has mentioned, changing the copyright notice in
> the kernel would have a legal impact.

As the System 5 settlement of some years ago emphasized, concealing
the origin of the code is one of the very few things that may *not*
legally be done under the BSD license.

Not that this should be at all a problem:  security that depends
on such obscurities is worth very little against any but the most
casual attacker.