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

[Lars Magne Ingebrigtsen]

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

> But every seeding interrupts the internal random state (which is out of
> our control at the moment) and break the users' train of random numbers.
>
> Also if you grep (random t) in the lisp/, you can see there is some
> effort in making a package only change the random state at most once.

Once per package?  That means that it's called many times in a single
Emacs session, so I don't really see the problem.

This should really be fixed by Emacs calling `(random t)' at startup.

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