This modification introduces support to configure <redirinstance> so that the default file system is used to handle files. This functionality is available only for the ExtFH interface (because only Micro Focus COBOL supports the fallback to the default file system when the DYNREDIR= environment variable is in use).
The <redirinstance> can be configured without setting the <redirinstance lib> attribute if the runtime supports fallback to the default file system.
If the <redirinstance> is configured without the <redirinstance lib> attribute and the runtime does not support fallback to the default file system, a warning message "Invalid <redirinstance> configuration" is logged and the operation fails with an error.