[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.

Can you pleas provide a reference to previous reviews and dicussions so
I can look over what was covered or rejected?

Thanks.

c.