A post-fix for MDEV-4871: Fixing a failire in "mtr --ps"

mysql-test/t/temporal_literal.test

@@ -155,9 +155,11 @@ EXPLAIN EXTENDED SELECT TIMESTAMP'2010-01-01 10:10:10';
 SELECT TIMESTAMP'2001-00-00 00:00:00.999999';
 SELECT TIMESTAMP'2001-00-01 00:00:00.999999';
 SELECT TIMESTAMP'2001-01-00 00:00:00.999999';
+--disable_ps_protocol
 SELECT TIMESTAMP'2001-00-00 00:00:00.9999999';
 SELECT TIMESTAMP'2001-00-01 00:00:00.9999999';
 SELECT TIMESTAMP'2001-01-00 00:00:00.9999999';
+--enable_ps_protocol
 
 --echo #
 --echo # String literal with bad dates and nanoseconds to DATETIME(N)
@@ -216,7 +218,9 @@ SELECT 'a' LIKE 'a' ESCAPE TIME'00:00:00';
 --echo #
 --echo # MDEV-4871 Temporal literals do not accept nanoseconds
 --echo #
+--disable_ps_protocol
 SELECT TIME'10:10:10.1234567';
+--enable_ps_protocol
 SELECT TIME('10:10:10.1234567');
 --error ER_WRONG_VALUE
 SELECT TIME'10:10:10.123456xyz';
@@ -225,7 +229,9 @@ SELECT TIME'10:10:10.1234567xyz';
 SELECT TIME('10:10:10.123456xyz');
 SELECT TIME('10:10:10.1234567xyz');
 
+--disable_ps_protocol
 SELECT TIMESTAMP'2001-01-01 10:10:10.1234567';
+--enable_ps_protocol
 SELECT TIMESTAMP('2001-01-01 10:10:10.1234567');
 --error ER_WRONG_VALUE
 SELECT TIMESTAMP'2001-01-01 10:10:10.123456xyz';