/usr/share/doc/libpmount-dev/changelog.gz is in libpmount-dev 0.0.16.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libpmount-dev/../libpmount0.0/changelog.gz
/usr/share/doc/libpmount-dev/../libpmount0.0/changelog.gz