Fixed the commented out coap_new_optlist() example in the coap_client example.
coap_new_optlist() requires 3 arguments but the example had 2 arguments.
@@ -436,7 +436,8 @@ static void coap_example_client(void *p)
* coap_insert_optlist(&optlist,
* coap_new_optlist(COAP_OPTION_CONTENT_FORMAT,
* coap_encode_var_safe (buf, sizeof (buf),
- * COAP_MEDIATYPE_APPLICATION_JSON));
+ * COAP_MEDIATYPE_APPLICATION_JSON),
+ * buf));
* Add in here the POST data of length length. E.G.
* coap_add_data_large_request(session, request length, data, NULL, NULL);
*/
