SAP Program RSTODIRX - Starter for RSTODIRD (Background) for Start by Upgrade

Description
This program starts the program RSTODIRD in the background.
Technical information is contained in the comment lines in the codeheader.

Precondition
The current release is used as the source release for the upgrade.
The target release (= release map) is expected as the input parameter(for example, 40A).

Output
The started program RSTODIRD generates the output in the spool log and(using the function module SUBST_READ_RSTODIRD_DATA) in the database.