Qt: correctly update the nowplaying info

Close #9960

(cherry picked from commit 13bd23a2b930c0efbb27482838b197c20130416e)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/gui/qt4/input_manager.cpp

@@ -239,7 +239,7 @@ void InputManager::customEvent( QEvent *event )
         if( p_item == ple->item() )
         {
             UpdateStatus();
-            // UpdateName();
+            UpdateName();
             UpdateArt();
             UpdateMeta();
             /* Update duration of file */