/usr/share/doc/libzbargtk0/changelog.Debian.gz is in libzbargtk0 0.10+doc-7build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libzbargtk0/../libzbar0/changelog.Debian.gz
/usr/share/doc/libzbargtk0/../libzbar0/changelog.Debian.gz