Identifies the output class for the data set. The class is one
character: A through Z or 0 through 9, which you may optionally
include in quotation marks. The attributes of each output class
are defined during JES initialization; specify the class with the
desired attributes.
*
Requests the output class in the MSGCLASS parameter on the JOB
statement.
null value
Requests the output class in the MSGCLASS parameter on the JOB
statement.