/usr/share/doc/libqt3-compat-headers/changelog.Debian.gz is in libqt3-compat-headers 3:3.3.8-b-8ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libqt3-compat-headers/../libqt3-headers/changelog.Debian.gz