Disable tracing on FreeBSD using procctl. (OpenSSH Portable 8.8)

[Ed Maste]

On Tue, 19 Oct 2021 at 13:40, Ed Maste <emaste at freebsd.org> wrote:
>
> On Fri, 15 Oct 2021 at 13:07, Bryan Drewery <bdrewery at freebsd.org> wrote:
> >
> > I think the tests may need to be improved as pid==0 represents a pseudo
> > kernel process.
>
> This is being fixed, but for compatibility with existing versions
> getpid() should indeed be used.

This was fixed in FreeBSD by f833ab9dd187 but the procctl call should
be changed in openssh.