Ending QPRTJOB Jobs

Hello sages

When trying to locate spool files created by a QZDASOINIT job (in order to
create a PDF doc)
I learned that actually, the spool files are created by a QPRTJOB job that
is invoked by the initial
QZDASOINIT job.
Now,
These QPRTJOB jobs remain active with their spool files in status FIN.
(Strangely, I don't see them in WRKSPLF *ALL)

Is it a good idea to periodically end those QPRTJOB jobs with SPLFILE(*YES)
?

TIA
Gad