Undefined variable referenced in StaticWeb logResponse()

pylint reports that an undefined variable is being used in the _log_response() method of swift.common.middleware.staticweb.StaticWeb. It seems that the variable 'the_request' should be referenced instead of 'req'.

(the bug is on the last line)

        the_request = quote(unquote(env['PATH_INFO']))
        if env.get('QUERY_STRING'):
            the_request = the_request + '?' + env['QUERY_STRING']
        # remote user for zeus
        client = env.get('HTTP_X_CLUSTER_CLIENT_IP')
        if not client and 'HTTP_X_FORWARDED_FOR' in env:
            # remote user for other lbs
            client = env['HTTP_X_FORWARDED_FOR'].split(',')[0].strip()
        logged_headers = None
        if self.log_headers:
            logged_headers = '\n'.join('%s: %s' % (k, v)
                for k, v in req.headers.items())

I have a fix and will submit shortly.