/usr/share/doc/vdr-plugin-dvbhddevice-dbg/changelog.Debian.gz is in vdr-plugin-dvbhddevice-dbg 2.0.3-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/vdr-plugin-dvbhddevice-dbg/../vdr/changelog.Debian.gz