/usr/share/doc/libraptor1-dev/NOTICE is in libraptor1-dev 1.4.21-7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libraptor1-dev/../libraptor1/NOTICE
/usr/share/doc/libraptor1-dev/../libraptor1/NOTICE