/usr/share/doc/libvslvm-dev/changelog.Debian.gz is in libvslvm-dev 20160110-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libvslvm-dev/../libvslvm1/changelog.Debian.gz
/usr/share/doc/libvslvm-dev/../libvslvm1/changelog.Debian.gz