Also follow this best practice in testlib's own documentation and examples. Change-Id: I8b57dfa8f88835adae8fceeb122a16635708e338 Reviewed-by: Paul Wicking <paul.wicking@qt.io> (cherry picked from commit f94f1653368bf8c499fa9a6eeba81736bb2a7710) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>