MDL-47529 lock: Fix typo on lock factory in config-dist

config-dist.php

@@ -507,7 +507,7 @@ $CFG->admin = 'admin';
 //      Uses lock files stored by default in the dataroot. Whether this
 //      works on clusters depends on the file system used for the dataroot.
 //
-// "\\core\\lock\\db_row_lock_factory" - DB locking based on table rows.
+// "\\core\\lock\\db_record_lock_factory" - DB locking based on table rows.
 //
 // "\\core\\lock\\postgres_lock_factory" - DB locking based on postgres advisory locks.
 //