- rpmtxn: don't checkpoint if transactions are not enabled.
- rpmtxn: don't checkpoint if transactions are not enabled.

devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5