`--end` option doesn't work

[ryandesign]

webactogram --help advertises an --end option that defaults to today:

webactogram/src/webactogram/webactogram.py

Line 805 in 2699eb7

parser.add_argument('--end', type=str, action='store', default=None, help='End date of the actogram. Default is None (today).')

I am not able to get it to work. Setting a start date with --start works, but the end date is always today, not the date I specified with --end.