The SORTLIB= option
specifies the name of the partitioned data set (load library) that
contains the host sort utility (other than the main module that is
specified by the SORTPGM= or SORTNAME= option). This library is dynamically
allocated to the ddname SORTLIB. If the host sort utility resides
in a link list library or if the sort library is part of the JOBLIB,
STEPLIB, or TASKLIB libraries, then this option is unnecessary and
should not be specified.