Converting repository files

The DIRCONV statement REORGANIZE-DIRECTORY enables repository files to be converted from the old format (HSMS < V7.0) to the new format (HSMS V7.0 or higher). The new format offers significantly better performance for backup operation with long path names of node files (Unix). All save files remain unchanged here. In the associated node archive only the existing directory needs to be replaced by the new directory from the DIRCONV conversion.