/usr/share/doc/libsmraw-utils/changelog.Debian.gz is in libsmraw-utils 20180123-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libsmraw-utils/../libsmraw1/changelog.Debian.gz
/usr/share/doc/libsmraw-utils/../libsmraw1/changelog.Debian.gz