/usr/share/doc/libfcml-dev/changelog.Debian.gz is in libfcml-dev 1.1.3-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libfcml-dev/../libfcml0/changelog.Debian.gz
/usr/share/doc/libfcml-dev/../libfcml0/changelog.Debian.gz