Fix test failures now that logfile has multiple showbacklog outputs due to a recent commit; Pick only latest/last one
Fix test failures now that logfile has multiple showbacklog outputs due to a recent commit; Pick only latest/last one

nars1/YottaDBtest,nars1/YottaDBtest,nars1/YottaDBtest,nars1/YottaDBtest,nars1/YottaDBtest,nars1/YottaDBtest