/usr/share/doc/libkohana3.2-mod-userguide-php/changelog.Debian.gz is in libkohana3.2-mod-userguide-php 3.2.2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libkohana3.2-mod-userguide-php/../libkohana3.2-core-php/changelog.Debian.gz