Increase stream retention period to retention_hours

    CLI example::

        salt myminion boto_kinesis.increase_stream_retention_period my_stream N region=us-east-1

def increase_stream_retention_period(stream_name, retention_hours,
                                     region=None, key=None, keyid=None, profile=None):
    '''
    Increase stream retention period to retention_hours

    CLI example::

        salt myminion boto_kinesis.increase_stream_retention_period my_stream N region=us-east-1
    '''
    conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
    r = _execute_with_retries(conn,
                              "increase_stream_retention_period",
                              StreamName=stream_name,
                              RetentionPeriodHours=retention_hours)
    if 'error' not in r:
        r['result'] = True
    return r