message: Fix ftrace print text update bug
diff: @@ -3518,6 +3518,10 @@ static void update_changed_colors( TraceEvents &trace_events, colors_t color )
  {
  switch( color )
  {
  + case col_FtracePrintText:
  + trace_events.invalidate_ftraceprint_colors();
  + break;
  +
  case col_Graph_PrintLabelSat:
  case col_Graph_PrintLabelAlpha:
  // ftrace print label color changes - invalidate current colors
  