RejectsChunkOverheadPastItsLimit sent about 78 KB per case, and the
server refused the request a few chunks in and closed the connection
while the client was still writing, so the send failed now and then
instead of returning the 400. Pad each size line with a sixteenth of
the limit, so each request is about 10 KB and goes past the limit only
at its last chunks.
yhirose
1e35f39675
