weird Ctrl-T debug messages

[Li-Wen Hsu]

On Sat, Jun 27, 2020 at 3:04 PM Hartmann, O. <ohartmann at walstatt.org> wrote:
>
> Running poudriere on recent CURRENT with (recent) 12-STABLE and CURRENT
> jails reveals a weird behaviour recently when hitting Ctrl-T:
...
> Is this debug fallout from /bin/sh?

It's because kern.tty_info_kstacks is on by default now:

https://svnweb.freebsd.org/changeset/base/362141

Li-Wen