/usr/lib/x86_64-linux-gnu/qt5/qml/QtFeedback/qmldir is in qml-module-qtfeedback 5.0~git20130529-0ubuntu13.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | module QtFeedback
plugin declarative_feedback
typeinfo plugins.qmltypes
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