JES000068I SYS1.LNKLST: <List of SYS1.LNKLIB entries>

This will display the SYS1.LNKLST entries if one of the SYS1.PARMLIB(IEASYSNN) indicates that the list should be shown. You can also see the list of entries by using IDCAMS to LISTCAT ENTRIES(SYS1.LNKLIB).