[PATCH] posix: Add missing nonnull attributes and __restrict qualifiers

[Florian Weimer]

* Adhemerval Zanella:

> On 07/12/2018 14:52, Florian Weimer wrote:
>> For consistency with execve, the __envp arguments are not marked
>> nonnull.
>
> I think you mean '__argv'.  LGTM, thanks.

Thanks, pushed with this change.

Florian