Returns the key/value pairs in the passed dict in a commaspace-delimited
    list in the format "key=value".

def _get_option_list(options):
    '''
    Returns the key/value pairs in the passed dict in a commaspace-delimited
    list in the format "key=value".
    '''
    return ', '.join(['{0}={1}'.format(x, y) for x, y in six.iteritems(options)])