This file is indexed.

/usr/share/doc/linux-signed-image-generic-lts-xenial/changelog.gz is in linux-signed-image-generic-lts-xenial 4.4.0.21.22.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/share/doc/linux-signed-image-generic-lts-xenial/../linux-signed-image-generic/changelog.gz