/usr/share/man/man4/if_epair.4freebsd.gz is in freebsd-manpages 11.1-3.
This file is owned by root:root, with mode 0o644.
It is a symlink to /usr/share/man/man4/./usr/share/man/man4/epair.4freebsd.gz
/usr/share/man/man4/./usr/share/man/man4/epair.4freebsd.gz