def GetDiagnostics(self, unused_cron_time_field):
    return []
A Recno file that is given a "backing source file" is essentially a
dataset/ETHPy150Open lyda/chkcrontab/chkcrontab_lib.py/CTStar.GetDiagnostics--crossover with--dataset/ETHPy150Open francelabs/datafari/windows/python/Lib/bsddb/test/test_recno.py/SimpleRecnoTestCase.test02_WithSource