This is useful when the widget is focused by default, and also gives
another opportunity to the user to read the message before typing,
removing the need for workarounds like clicking in another text entry to
bring back the placeholder message.
Change-Id: I4a2981a6656a87934b5c8ed4a8a2dc13b748c94d
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>