Output default values of the System Environment Settings messages

* XRPRMGEN * FILE OPEN ERROR DDNAME=XRGEN

Description:

Failed to open the output file.

Measures:

Check the data set specified in the JCL DD name XRGEN.

* XRPRMGEN * PARAMETER FILE ACCESS ERROR

Description:

Failed to access the parameter file.

Measures:

Check if HULFT load module specified in the JCL is correct.