[Patch] Remove use of sbrk

[Tristan Gingold]

> On 04 Jul 2017, at 04:04, Alan Modra <amodra@gmail.com> wrote:
> 
> On Mon, Jul 03, 2017 at 03:50:14PM +0200, Tristan Gingold wrote:
>> I was not sure about a consensus on this point.  Maybe worth asking directly:
>> Is someone against suppressing sbrk() calls ?
> 
> People have already had three years and six months to comment.  Please
> go ahead and commit the patch, if you still think it is good.

Just committed.

Tristan.