On Mon, Oct 17, 2016 at 04:56:05PM -0500, Eric Blake wrote:
> You're not the first person to complain that $RANDOM is a bashism, and
> this is not the first time we've had to retort that our use of $RANDOM
> is a nicety, but not a necessity, and that the code is perfectly safe
> and tested on shells where the expansion of $RANDOM is the empty string.

I can see why it would surprise people, so maybe it would be helpful to
add a comment mentioning that the code is still safe when $RANDOM is not
useful, and perhaps pointing to this discussion.

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