/usr/share/doc/liblog4net-cil-dev/changelog.Debian.gz is in liblog4net-cil-dev 1.2.10+dfsg-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/liblog4net-cil-dev/../liblog4net1.2-cil/changelog.Debian.gz