/usr/share/doc/libfontembed-dev/AUTHORS is in libfontembed-dev 1.8.3-2ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libfontembed-dev/../libfontembed1/AUTHORS
/usr/share/doc/libfontembed-dev/../libfontembed1/AUTHORS