message: fix Unix print-on-second-last-line
diff: @@ -242,9 +242,9 @@ class Logger():
  # (print text)
  # ESC 8: restore old cursor position
  - sys.stdout.write('\x1b7\x1b[1A\x1b[1S\x1b[1L', end='', flush=True)
  + sys.stdout.write('\x1b7\x1b[1A\x1b[1S\x1b[1L')
  sys.stdout.write(Logger._VT100Colors[color] + text + Logger._VT100Colors[Logger.COLOR_DEFAULT])
  - sys.stdout.write('\x1b8', end='', flush=True)
  + sys.stdout.write('\x1b8')
  sys.stdout.flush()
  def print_colored(self, text, color):
  