Import tool cbdocloader display file name when error

Running this tool on ubuntu server 12.04.

I didn’t find any option in this tool that displays the file name when an error occurs.

I’m importing more then 1000 documents = 1000 files in import folder.
I had 10 errors => bad formatting
How can figure out what were the faulty files?
This tool has no log option and no verbose mode???

So could you at least display the input file name when displaying an error?

Thanks

Fred