[PATCH] manual: Update alloca and variable length array documentation

[Carlos O'Donell]

On 08/11/2017 05:53 AM, Florian Weimer wrote:
> I'm resubmitting my old documentation patch (from early 2016) for
> reconsideration.
> 
> I reinstated the mention of GNU compiler compatibility for strdupa and
> strndupa.

Thanks for the updated reference to the previous conversation with Paul Eggert.
I read that as a reference for this review.

The changes look good to me, they are better than what we had before.

At a high level we are removing the limitation about use in parameter lists,
and adding warnings about security, all good to me.

Cheers,
Carlos.