sed: s/( void )/(), s/FALSE/false/, s/TRUE/true

Replaced remaining occurences of old constants and superfluous "void"
on empty argument list of functions.
(cherry picked from commit 166701f9f3)

src/gui/widgets/caption_menu.cpp

@@ -32,7 +32,7 @@ captionMenu::captionMenu( const QString & _title, QWidget * _parent ) :
 	QMenu( _title, _parent )
 {
 	QAction * caption = addAction( _title );
-	caption->setEnabled( FALSE );
+	caption->setEnabled( false );
 }