bug#9118: 23.3.50; Don't seed the RNG in message-unique-id

[Lars Magne Ingebrigtsen]

Leo <sdl.web@gmail.com> writes:

> But you can arrange to seed it once when that file is loaded. No need to
> seed it every time.

Calling it once every time you send an email isn't really heavy usage of
the re-seeding.

> BTW, (random t) produces no random numbers.
>
> (loop repeat 5 collect (random t))
>
> =>
>
> (2265815277832325116 2265815277832325116 2265815277832325116
> 2265815277832325116 2265815277832325116)

Oops.  :-)  Fixed now.

-- 
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