/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/ktplegacyhelper/qmldir is in kde-telepathy-legacy-presence-applet 1.1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | module org.kde.plasma.ktplegacyhelper
plugin ktplegacyhelperplugin
|