Access log: removed dead ev->timedout check in flush timer handler. The ev->timedout flag is set on first timer expiration, and never reset after it. Due to this the code to stop the timer when the timer was canceled never worked (except in a very specific time frame immediately after start), and the timer was always armed again. This essentially resulted in a buffer flush at the end of an event loop iteration. This behaviour actually seems to be better than just stopping the flush timer for the whole shutdown, so it is preserved as is instead of fixing the code to actually remove the timer. It will be further improved by upcoming changes to preserve cancelable timers if there are other timers blocking shutdown.

scgi_param  REQUEST_METHOD     $request_method;
scgi_param  REQUEST_URI        $request_uri;
scgi_param  QUERY_STRING       $query_string;
scgi_param  CONTENT_TYPE       $content_type;

scgi_param  DOCUMENT_URI       $document_uri;
scgi_param  DOCUMENT_ROOT      $document_root;
scgi_param  SCGI               1;
scgi_param  SERVER_PROTOCOL    $server_protocol;
scgi_param  REQUEST_SCHEME     $scheme;
scgi_param  HTTPS              $https if_not_empty;

scgi_param  REMOTE_ADDR        $remote_addr;
scgi_param  REMOTE_PORT        $remote_port;
scgi_param  SERVER_PORT        $server_port;
scgi_param  SERVER_NAME        $server_name;