to fix error:

./crit/crit decode -i test/dump/zdtm/static/maps04/118/1/stats-dump
Traceback (most recent call last):
  File "./crit/crit", line 276, in <module>
    main()
  File "./crit/crit", line 273, in main
    opts["func"](opts)
  File "./crit/crit", line 28, in decode
    img = pycriu.images.load(inf(opts), opts['pretty'], opts['nopl'])
KeyError: 'nopl'
Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>