turn off error caused by reading empty file

[Yang-z]

when reading an empty file in cmd , the system metadata (such file modified time) could return, and an error message fellows.
Can I turn off that error, because some 3rd package refuse to pass any metadate since an error occurs.
Or, could you replace it with a warning? Empty file happens, no need to throw an error.

Thanks a lot.

[Phil Harvey]

It is an error in the same way that you get an "Unknown file type" error if ExifTool can't determine the file type.  This is just a specific instance of an unknown file type.

- Phil