message: Fix not passing enough arguments to logger
diff: @@ -1659,7 +1659,8 @@ void ConnectionManagerImpl::ActiveStream::encodeHeadersInternal(ResponseHeaderMa
  chargeStats(headers);
  - ENVOY_STREAM_LOG(debug, "encoding headers via codec (end_stream={}):\n{}", *this, end_stream);
  + ENVOY_STREAM_LOG(debug, "encoding headers via codec (end_stream={}):\n{}", *this, end_stream,
  + headers);
  // Now actually encode via the codec.
  stream_info_.onFirstDownstreamTxByteSent();
  