Ticket 49445 - Improve regression test to detect memory leak.
Bug Description: Memory leak in ldif2db of the instance
name selected for the import
Fix Description: Update the test case to work on python 3,
which involves changes to tot_init test, and improvements
to dbgen to create the correct objects.
https://pagure.io/389-ds-base/issue/49445
Author: wibrown
Review by: lkrispen, spichugi (Thanks!)