message: Fix popup text formatting
diff: @@ -670,8 +670,11 @@ def debug(message, *format):
  def show(message, *format):
  + if format:
  + message = message % tuple(format)
  +
  popup = Popup.PyPopup()
  - popup.setBodyString(message % tuple(format))
  + popup.setBodyString(message)
  popup.launch()
  