/usr/share/doc/libmilter-dev/changelog.Debian.gz is in libmilter-dev 8.14.4-2ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libmilter-dev/../libmilter1.0.1/changelog.Debian.gz
/usr/share/doc/libmilter-dev/../libmilter1.0.1/changelog.Debian.gz