parser.add_option('-l', '--list-error-boards', action='store_true',
default=False, help='Show a list of boards next to each error/warning')
parser.add_option('--list-tool-chains', action='store_true', default=False,
parser.add_option('-l', '--list-error-boards', action='store_true',
default=False, help='Show a list of boards next to each error/warning')
parser.add_option('--list-tool-chains', action='store_true', default=False,