work around minimum part size problem

When uploading the last part of a file, which was 640229 bytes, S3 rejected
that part: "Your proposed upload is smaller than the minimum allowed size"

I don't know what the minimum is, but the fix is just to include the last
part into the previous part. Since this can result in a part that's
double-sized, use half-sized parts normally.

0 files changed, 0 insertions, 0 deletions