iotap: maybe todo
iotop-git to fix a character bug

Traceback (most recent call last):
  File "/usr/bin/iotop", line 17, in <module>
    main()
  File "/usr/lib/python2.7/site-packages/iotop/ui.py", line 620, in main
    main_loop()
  File "/usr/lib/python2.7/site-packages/iotop/ui.py", line 610, in <lambda>
    main_loop = lambda: run_iotop(options)
  File "/usr/lib/python2.7/site-packages/iotop/ui.py", line 506, in run_iotop
    return run_iotop_window(None, options)
  File "/usr/lib/python2.7/site-packages/iotop/ui.py", line 501, in run_iotop_window
    ui.run()
  File "/usr/lib/python2.7/site-packages/iotop/ui.py", line 155, in run
    self.process_list.duration)
  File "/usr/lib/python2.7/site-packages/iotop/ui.py", line 447, in refresh_display
    print(l)
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2748' in position 319: ordinal not in range(128)
iotap: don't save/restore screen, to allow for possible errors to be

seen