Converted to use QZBRMSEXIT and now my backups fail.

In version 4.5 we added the ability to better monitor BRMS backups by using a backup item exit program (WRKCTLGBRM, Opt 8) instead of a control group entry exit (WRKCTLGBRM, Opt 2, *EXIT). Often this results in surfacing errors previously ignored and thus the backup is reported as failed.