Need more information about mysql-wsrep#198 sporadic test failure.

mysql-test/suite/galera/t/mysql-wsrep#198-master.opt

---log-bin

mysql-test/suite/galera/t/mysql-wsrep#198.cnf

+!include ../galera_2nodes.cnf
+
+[mysqld.1]
+log-bin
+wsrep-debug=1
+
+[mysqld.1]
+log-bin
+wsrep-debug=1

mysql-test/suite/galera/t/mysql-wsrep#198.test

 --source include/galera_cluster.inc
 --source include/have_innodb.inc
+--source include/force_restart.inc
 
 CREATE TABLE t1 (id INT PRIMARY KEY) ENGINE=InnoDB;
 CREATE TABLE t2 (id INT PRIMARY KEY) ENGINE=InnoDB;