/usr/share/doc/libfreefem-dev/NEWS.gz is in libfreefem-dev 3.5.8-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libfreefem-dev/../libfreefem0/NEWS.gz
/usr/share/doc/libfreefem-dev/../libfreefem0/NEWS.gz