/usr/share/doc/libxml2-utils/changelog.Debian.gz is in libxml2-utils 2.9.4+dfsg1-6.1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libxml2-utils/../libxml2/changelog.Debian.gz
/usr/share/doc/libxml2-utils/../libxml2/changelog.Debian.gz