/usr/share/man/man8/ppsctl.8.gz is in pps-tools 0.20120406+g0deb9c7e-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man8/pps-tools.8.gz
/usr/share/man/man8/pps-tools.8.gz