On Debian/trixie we have:
| # sysctl kernel.core_pattern
| kernel.core_pattern = |/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h %d %F
On Debian/forky we have:
| # sysctl kernel.core_pattern
| kernel.core_pattern = |/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h %d %F %I
FTR, "%I" is TID of thread that triggered core dump, as seen in the
initial PID namespace (since Linux 3.18).
Change-Id: Ib8a728d080ff6bfce84fd58e10206d0693ee81d4