(Optional) WORKAREA and /tmp cleanup

This customization task does not require assistance, special resources, or special customization tasks.

The Legacy ISPF Gateway uses the WORKAREA and /tmp directories to store temporary work files, which are removed before the session is closed. However, temporary output is sometimes left behind, for example, if there is a communication error while processing. For this reason, the WORKAREA and /tmp directories must be cleared periodically.