/usr/share/doc/libadns1-dbg/changelog.Debian.gz is in libadns1-dbg 1.5.0~rc1-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libadns1-dbg/../libadns1/changelog.Debian.gz
/usr/share/doc/libadns1-dbg/../libadns1/changelog.Debian.gz