/usr/share/doc/kannel-extras/changelog.Debian.gz is in kannel-extras 1.4.3-2fakesync2build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/kannel-extras/../kannel/changelog.Debian.gz
/usr/share/doc/kannel-extras/../kannel/changelog.Debian.gz