/usr/share/doc/libgstreamer-gl1.0-0/NEWS.gz is in libgstreamer-gl1.0-0 1.14.0-2ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libgstreamer-gl1.0-0/../libgstreamer-plugins-base1.0-0/NEWS.gz