Adds an identifier to the rights database, RIGHTSLIST.DAT.
    The ADD/IDENTIFIER command does not add a user account to the
    authorization file, SYSUAF.

    The ADD/ADD_IDENTIFIER command, however, adds a user account to
    the authorization file, SYSUAF, and also adds an identifier to
    the rights database, RIGHTSLIST.DAT.

    Format

      ADD/IDENTIFIER  [id-name]