/usr/share/doc/lighttpd-mod-mysql-vhost/changelog.Debian.gz is in lighttpd-mod-mysql-vhost 1.4.45-1ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/lighttpd-mod-mysql-vhost/../lighttpd/changelog.Debian.gz