/usr/share/doc/libcamp-dev/changelog.Debian.gz is in libcamp-dev 0.8.1-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libcamp-dev/../libcamp0.8/changelog.Debian.gz
/usr/share/doc/libcamp-dev/../libcamp0.8/changelog.Debian.gz