/usr/share/doc/liblv2dynparam1-dev/changelog.Debian.gz is in liblv2dynparam1-dev 2-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/liblv2dynparam1-dev/../liblv2dynparamhost1-1/changelog.Debian.gz