/usr/share/doc/libqtgstreamerui-0.10-0/changelog.Debian.gz is in libqtgstreamerui-0.10-0 0.10.1-2ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libqtgstreamerui-0.10-0/../libqtglib-2.0-0/changelog.Debian.gz