Add USERID/JOBNAME to USS BPXO058I + BPXF274I msgs

This request is to add userid/jobname to the USS mount failure message (BPXF274I) and the output of D OMVS,MF (BPXO058I).

Mount failure message in SYSLOG:

BPXF274I FILE SYSTEM OMVS.ZFS.SOMEFS 031

FAILED TO MOUNT.

RETURN CODE = 00000079, REASON CODE = 055B005A

D OMVS,MF output:

D OMVS,MF

BPXO058I 17.45.36 DISPLAY OMVS 734

OMVS 0010 ACTIVE OMVS=(XX,YY)

SHORT LIST OF FAILURES:

TIME=14.34.42 DATE=2022/10/25 MOUNT RC=0079 RSN=055B005A

NAME=OMVS.ZFS.SOMEFS

TYPE=ZFS

PATH=/u/somefs

(Note: Names have been redacted).

As you can see from the above - D OMVS,MF shows Name, Type, Path and Time, but no indication of what user or job attempted this mount. I had to set a MSGID slip to capture an SVC dump and then ask USS level2 to look at the dump and extract the user - which takes time and requires IPCS/dump skills.

We would like to see the job/userid in the output of both BPXO058I and BPXF274I. This would save time and effort.