/usr/share/doc/libdsdp-dev/changelog.Debian.gz is in libdsdp-dev 5.8-9.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libdsdp-dev/../libdsdp-5.8gf/changelog.Debian.gz
/usr/share/doc/libdsdp-dev/../libdsdp-5.8gf/changelog.Debian.gz