Use connection->end to send response

Author: walkor

src/Protocols/Http.php

@@ -118,7 +118,7 @@ public static function input(string $buffer, TcpConnection $connection): int
             . '(?:GET|POST|OPTIONS|HEAD|DELETE|PUT|PATCH) +\/[^\x00-\x20\x7f]* +HTTP\/1\.[01]\r\n~i';
 
         if (!preg_match($headerValidatePattern, $header, $matches)) {
-            $connection->close("HTTP/1.1 400 Bad Request\r\nContent-Length: 0\r\n\r\n", true);
+            $connection->end("HTTP/1.1 400 Bad Request\r\nConnection: close\r\nContent-Length: 0\r\n\r\n", true);
             return 0;
         }