MDEV-6720 - enable connection log in mysqltest by default

mysql-test/suite/parts/r/partition_debug_sync_innodb.result

@@ -15,9 +15,9 @@ a
 1
 21
 33
-# con1 (send)
+connect  con1, localhost, root,,;
 ALTER TABLE t1 TRUNCATE PARTITION pMax;
-# con default
+connection default;
 SELECT * FROM t1;
 a
 1
@@ -25,9 +25,9 @@ a
 33
 # Commit will allow the TRUNCATE to finish
 COMMIT;
-# con1 (reap)
-# con1 (disconnect)
-# default connection
+connection con1;
+disconnect con1;
+connection default;
 SELECT * FROM t1;
 a
 1
@@ -62,6 +62,7 @@ SELECT TABLE_SCHEMA, TABLE_NAME, PARTITION_NAME, PARTITION_ORDINAL_POSITION,
 PARTITION_DESCRIPTION, TABLE_ROWS
 FROM INFORMATION_SCHEMA.PARTITIONS
 WHERE TABLE_NAME = 't1' AND TABLE_SCHEMA = 'test';
+connect  con1, localhost, root,,;
 SET DEBUG_SYNC = 'now WAIT_FOR parked';
 # When waiting for the name lock in get_all_tables in sql_show.cc
 # this will not be concurrent any more, thus the TIMEOUT
@@ -73,6 +74,8 @@ ALTER TABLE t1 REORGANIZE PARTITION p0 INTO
 PARTITION p10 VALUES LESS THAN MAXVALUE);
 Warnings:
 Warning	1639	debug sync point wait timed out
+disconnect con1;
+connection default;
 TABLE_SCHEMA	TABLE_NAME	PARTITION_NAME	PARTITION_ORDINAL_POSITION	PARTITION_DESCRIPTION	TABLE_ROWS
 test	t1	p0	1	10	1
 test	t1	p10	2	MAXVALUE	3