rpl.rpl_known_bugs_detection fails on PB2 daily mysql-5.5.

The rpl.rpl_known_bugs_detection fails on pb2 as warnings were found in the
mysqld log file. We fix this problem by suppressing the warning.

mysql-test/suite/rpl/r/rpl_known_bugs_detection.result

@@ -1,5 +1,6 @@
 include/master-slave.inc
 [connection master]
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT.");
 CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT, b INT,
 UNIQUE(b));
 INSERT INTO t1(b) VALUES(1),(1),(2) ON DUPLICATE KEY UPDATE t1.b=10;

mysql-test/suite/rpl/t/rpl_known_bugs_detection.test

@@ -6,6 +6,8 @@
 source include/have_debug.inc;
 source include/master-slave.inc;
 
+call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT.");
+
 # Currently only statement-based-specific bugs are here
 -- source include/have_binlog_format_statement.inc