Fix test as it was intended

Author: pabzm

tests/Framework/Text2HtmlTest.php

@@ -165,17 +165,17 @@ public function test_text2html_xss2()
     public function test_text2html_8021()
     {
         $input = "Test1 [1]\n\n[1] http://d1.tld\n\nyou wrote:\n> Test2 [1]\n>\n> [1] http://d2.tld";
-        $expected = '<div class="pre">Test1 [<a rel="noreferrer noopener" href="http://d1.tld">1</a>]'
+        $expected = '<div class="pre">Test1 [<a href="http://d1.tld">1</a>]'
             . "<br>\n<br>\n"
-            . '[1] <a rel="noreferrer noopener" href="http://d1.tld">http://d1.tld</a>'
+            . '[1] <a href="http://d1.tld">http://d1.tld</a>'
             . "<br>\n<br>\n"
-            . 'you wrote:<blockquote>Test2 [<a rel="noreferrer noopener" href="http://d2.tld">1</a>]'
+            . 'you wrote:<blockquote>Test2 [<a href="http://d2.tld">1</a>]'
             . "<br>\n<br>\n"
-            . '[1] <a rel="noreferrer noopener" href="http://d2.tld">http://d2.tld</a></blockquote></div>';
+            . '[1] <a href="http://d2.tld">http://d2.tld</a></blockquote></div>';
 
         $t2h = new \rcube_text2html($input);
         $html = $t2h->get_html();
-        $html = preg_replace('/ (rel|target)="(noreferrer|_blank)"/', '', $html);
+        $html = preg_replace('/ (rel|target)="(noreferrer noopener|_blank)"/', '', $html);
 
         $this->assertSame($expected, $html);
     }