Fix dangling pointer bug in Phonon GST plugin
Fix dangling pointer bug in Phonon GST plugin

QString::toLocal8Bit() returns a temporary that goes out of scope immediately.

shadeslayer/phonon-gstreamer,KDE/phonon-xine,KDE/phonon-directshow,KDE/phonon-waveout,KDE/phonon-xine,shadeslayer/phonon-gstreamer,KDE/phonon-xine,KDE/phonon-mmf,KDE/phonon-gstreamer,KDE/phonon-directshow,KDE/phonon-quicktime,shadeslayer/phonon-gstreamer,KDE/phonon-gstreamer