Fix test.

test/broker/12-prop-maximum-packet-size-broker.py

@@ -8,7 +8,7 @@ def write_config(filename, port):
     with open(filename, 'w') as f:
         f.write("port %d\n" % (port))
         f.write("allow_anonymous true\n")
-        f.write("max_packet_size 30\n")
+        f.write("max_packet_size 40\n")
 
 port = mosq_test.get_port()
 conf_file = os.path.basename(__file__).replace('.py', '.conf')
@@ -18,7 +18,7 @@ rc = 1
 
 keepalive = 10
 connect_packet = mosq_test.gen_connect("12-max-packet-broker", proto_ver=5, keepalive=keepalive)
-props = mqtt5_props.gen_uint32_prop(mqtt5_props.PROP_MAXIMUM_PACKET_SIZE, 30)
+props = mqtt5_props.gen_uint32_prop(mqtt5_props.PROP_MAXIMUM_PACKET_SIZE, 40)
 connack_packet = mosq_test.gen_connack(rc=0, proto_ver=5, properties=props)
 
 publish_packet = mosq_test.gen_publish("12/max/packet/size/broker/test/topic", qos=0, payload="0123456789012345678901234567890", proto_ver=5)