/usr/share/doc/librelp-dev/changelog.Debian.gz is in librelp-dev 1.2.2-2ubuntu1.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/librelp-dev/../librelp0/changelog.Debian.gz
/usr/share/doc/librelp-dev/../librelp0/changelog.Debian.gz