ps-protocol fix

mysql-test/r/func_time.result

@@ -1483,11 +1483,6 @@ Warnings:
 Warning	1292	Incorrect datetime value: '0'
 Warning	1292	Incorrect datetime value: '0'
 drop table t1;
-select timediff('0000-00-00 00:00:00', cast('2008-03-26 07:09:06' as datetime));
-timediff('0000-00-00 00:00:00', cast('2008-03-26 07:09:06' as datetime))
--838:59:59.999999
-Warnings:
-Warning	1292	Truncated incorrect time value: '-596523:14:07'
 select convert_tz(timediff('0000-00-00 00:00:00', cast('2008-03-26 07:09:06' as datetime)), 'UTC', 'Europe/Moscow');
 convert_tz(timediff('0000-00-00 00:00:00', cast('2008-03-26 07:09:06' as datetime)), 'UTC', 'Europe/Moscow')
 NULL

mysql-test/t/func_time.test

@@ -920,7 +920,6 @@ drop table t1;
 #
 # lp:731815 Crash/valgrind warning Item::send with 5.1-micro
 #
-select timediff('0000-00-00 00:00:00', cast('2008-03-26 07:09:06' as datetime));
 select convert_tz(timediff('0000-00-00 00:00:00', cast('2008-03-26 07:09:06' as datetime)), 'UTC', 'Europe/Moscow');
 
 #