Transliteration of file names doesn't work

Here's the solution; seems to be working without any problems.
I just added the transliteration function to the place before upload (where the file names are gathered and prepared for saving).

File: multifile.inc, line 801

Change:

    if (!empty($_FILES['files']['orig_name'][$form_key][$key])) {
      $_FILES['files']['name'][$newkey] = $_FILES['files']['orig_name'][$form_key][$key];
    }
    else {
      $_FILES['files']['name'][$newkey] = $_FILES['files']['name'][$form_key];
    }

Into this:

    if (!empty($_FILES['files']['orig_name'][$form_key][$key])) {
      $_FILES['files']['name'][$newkey] = transliteration_clean_filename($_FILES['files']['orig_name'][$form_key][$key]);
    }
    else {
      $_FILES['files']['name'][$newkey] = transliteration_clean_filename($_FILES['files']['name'][$form_key]);
    }

I'll update the status of this issue to "Needs review".

Let me know if you need me to provide anything else.

Thanks

Unfortunately I don't know how to make patches (it's on my todo list for a long time).

Thanks for fixing this quickly :)