Comment added to each file.

Tested x86_64-linux. Pushed to trunk.

On Mon, Jul 3, 2023 at 4:16 PM Jonathan Wakely <jwakely@redhat.com> wrote:

> On Mon, 3 Jul 2023 at 23:14, Thomas Rodgers via Libstdc++
> <libstdc++@gcc.gnu.org> wrote:
> >
> > This testcase is causing some timeout issues. This patch splits the
> > testcase up by individual set algorithm.
>
> I think the Apache license requires a notice saying the original file
> was modified. A comment in each new file noting it was derived from
> pstl/alg_sorting/set.cc (or whatever the file is called upstream)
> should be sufficient.
>
> OK with that change, thanks.
>
>