updated plugin W3 Total Cache version 2.3.3

wp-content/plugins/w3-total-cache/vendor/guzzlehttp/psr7/tests/ReadSeekOnlyStream.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace GuzzleHttp\Tests\Psr7;
+
+use GuzzleHttp\Psr7\Stream;
+
+final class ReadSeekOnlyStream extends Stream
+{
+    public function __construct()
+    {
+        parent::__construct(fopen('php://memory', 'wb'));
+    }
+
+    public function isSeekable()
+    {
+        return true;
+    }
+
+    public function isReadable()
+    {
+        return false;
+    }
+}