/usr/share/doc/libqtgui4-perl/changelog.Debian.gz is in libqtgui4-perl 4:4.8.2-0ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libqtgui4-perl/../libqtcore4-perl/changelog.Debian.gz