/usr/share/doc/libomniorb4-1/changelog.Debian.gz is in libomniorb4-1 4.1.6-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libomniorb4-1/../libomnithread3c2/changelog.Debian.gz
/usr/share/doc/libomniorb4-1/../libomnithread3c2/changelog.Debian.gz