/usr/share/doc/libanalitzaplot5abi1/changelog.Debian.gz is in libanalitzaplot5abi1 4:4.14.3-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libanalitzaplot5abi1/../libanalitza5abi1/changelog.Debian.gz