/usr/share/doc/gmerlin-plugins-avdecoder/NEWS.gz is in gmerlin-plugins-avdecoder 1.2.0~dfsg-6.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/gmerlin-plugins-avdecoder/../libgmerlin-avdec1/NEWS.gz