BUG/MINOR: http: don't log a 503 on client errors while waiting for requests

If a client aborts a request with an error (typically a TCP reset), we must
log a 400. Till now we did not set the status nor close the stream interface,
causing the request to attempt to be forwarded and logging a 503.

Should be backported to 1.4 which is affected as well.
1 file changed