/usr/share/doc/liblua5.1-rrd-dev/NEWS.gz is in liblua5.1-rrd-dev 1.5.5-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/liblua5.1-rrd-dev/../librrd4/NEWS.gz
/usr/share/doc/liblua5.1-rrd-dev/../librrd4/NEWS.gz