PyLint is producing an expression-not-assigned warning for the expression parser.add_argument(...). This is excessively noisy.

For example:

W:815, 2: Expression "(parser.add_argument('--nosystem-health-orderfile', action='store_false', dest='system_health_orderfile', default=True, help='Create an orderfile based on an about:blank startup benchmark instead of system health benchmarks.'), )" is assigned to nothing (expression-not-assigned)

from crrev.com/c/1228074.

Thanks!