/usr/share/man/man8/tftpd.8.gz is in tftpd-hpa 5.2-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man8/in.tftpd.8.gz
/usr/share/man/man8/in.tftpd.8.gz