Fix autotests expecting a trailing whitespace for qDebug stream

The behavior of QDebug was fixed in qtbase. Update autotests
accordingly.

Change-Id: Iec8d28f18ca6f5ff1ae960e74d0d978b212ca60b
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Lorn Potter <lorn.potter@jollamobile.com>