principal: Invalid argument while creating "foo@FOO".

[Greg Hudson]

On Tue, 2009-12-29 at 13:02 -0500, Jeffrey Altman wrote:
> May I suggest that in order to provide for backward compatibility that
> kadmin recognize the
> well-known dummy password and the use of the disallow-tickets flag and
> replace the dummy
> password with one that will succeed.

That's a good idea, and I'll try to implement it for 1.7 and 1.8 in the
near future.