/usr/share/doc/roxterm-gtk3-dbg/changelog.Debian.gz is in roxterm-gtk3-dbg 2.8.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/roxterm-gtk3-dbg/../roxterm-gtk3/changelog.Debian.gz
/usr/share/doc/roxterm-gtk3-dbg/../roxterm-gtk3/changelog.Debian.gz