Fixes for failures related to push for BACKUP LOCK

mysql-test/main/backup_syntax.result

@@ -11,7 +11,7 @@ BACKUP STAGE END;
 BACKUP LOG;
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'LOG' at line 1
 BACKUP LOCK;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'LOCK' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
 BACKUP STAGE;
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
 BACKUP STAGE LOCK;

mysql-test/main/mysqld--help.result

@@ -1600,7 +1600,7 @@ performance-schema-max-rwlock-instances -1
 performance-schema-max-socket-classes 10
 performance-schema-max-socket-instances -1
 performance-schema-max-stage-classes 160
-performance-schema-max-statement-classes 201
+performance-schema-max-statement-classes 202
 performance-schema-max-table-handles -1
 performance-schema-max-table-instances -1
 performance-schema-max-thread-classes 50

mysql-test/suite/sys_vars/r/sysvars_server_embedded.result

@@ -3080,9 +3080,9 @@ READ_ONLY	YES
 COMMAND_LINE_ARGUMENT	REQUIRED
 VARIABLE_NAME	PERFORMANCE_SCHEMA_MAX_STATEMENT_CLASSES
 SESSION_VALUE	NULL
-GLOBAL_VALUE	201
+GLOBAL_VALUE	202
 GLOBAL_VALUE_ORIGIN	COMPILE-TIME
-DEFAULT_VALUE	201
+DEFAULT_VALUE	202
 VARIABLE_SCOPE	GLOBAL
 VARIABLE_TYPE	BIGINT UNSIGNED
 VARIABLE_COMMENT	Maximum number of statement instruments.

mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result

@@ -3304,9 +3304,9 @@ READ_ONLY	YES
 COMMAND_LINE_ARGUMENT	REQUIRED
 VARIABLE_NAME	PERFORMANCE_SCHEMA_MAX_STATEMENT_CLASSES
 SESSION_VALUE	NULL
-GLOBAL_VALUE	201
+GLOBAL_VALUE	202
 GLOBAL_VALUE_ORIGIN	COMPILE-TIME
-DEFAULT_VALUE	201
+DEFAULT_VALUE	202
 VARIABLE_SCOPE	GLOBAL
 VARIABLE_TYPE	BIGINT UNSIGNED
 VARIABLE_COMMENT	Maximum number of statement instruments.