'Write the log info out in a formatted form to ``LOG.info``.'

def write_log(self, environ, req_uri, status, size):

    if (size is None):
        size = '-'
    log_format = {'REMOTE_ADDR': environ.get('REMOTE_ADDR', '-'), 'REQUEST_METHOD': environ['REQUEST_METHOD'], 'REQUEST_URI': req_uri, 'status': status.split(None, 1)[0], 'bytes': size, 'microversion': environ.get(microversion.MICROVERSION_ENVIRON, '-')}
    LOG.info(self.format, log_format)
