- g.add_argument('-v','--verbose', default=0, action='count')
+ x = p.add_mutually_exclusive_group()
+ x.add_argument('-v','--verbose', default=1, action='count', help='Increase verbosity of explanatory output to stderr')
+ x.add_argument('-q','--quiet', dest='verbose', action='store_const', const=0, help='Reduce verbosity to a minimum')