MDEV-27314 InnoDB Buffer Pool Resize output cleanup (mtr postfix)

More tests depending on 'Completed resizing buffer pool.' output

mysql-test/suite/innodb/t/innodb_buffer_pool_resize.test

@@ -7,7 +7,7 @@
 
 let $wait_timeout = 180;
 let $wait_condition =
-  SELECT SUBSTR(variable_value, 1, 34) = 'Completed resizing buffer pool at '
+  SELECT SUBSTR(variable_value, 1, 31) = 'Completed resizing buffer pool.'
   FROM information_schema.global_status
   WHERE LOWER(variable_name) = 'innodb_buffer_pool_resize_status';
 

mysql-test/suite/innodb/t/innodb_buffer_pool_resize_with_chunks.test

@@ -8,7 +8,7 @@
 
 let $wait_timeout = 180;
 let $wait_condition =
-  SELECT SUBSTR(variable_value, 1, 34) = 'Completed resizing buffer pool at '
+  SELECT SUBSTR(variable_value, 1, 31) = 'Completed resizing buffer pool.'
   FROM information_schema.global_status
   WHERE LOWER(variable_name) = 'innodb_buffer_pool_resize_status';
 

mysql-test/suite/sys_vars/t/innodb_buffer_pool_size_basic.test

@@ -25,7 +25,7 @@
 --source include/have_innodb.inc
 
 let $wait_condition =
-  SELECT SUBSTR(variable_value, 1, 34) = 'Completed resizing buffer pool at '
+  SELECT SUBSTR(variable_value, 1, 31) = 'Completed resizing buffer pool.'
   FROM information_schema.global_status
   WHERE LOWER(variable_name) = 'innodb_buffer_pool_resize_status';