/usr/share/doc/libavahi-core-dev/NEWS.gz is in libavahi-core-dev 0.7-3.1ubuntu1.2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libavahi-core-dev/../libavahi-common-data/NEWS.gz
/usr/share/doc/libavahi-core-dev/../libavahi-common-data/NEWS.gz