Fix html output formatter to work with latest symfony console

tests/Composer/Test/Console/HtmlOutputFormatterTest.php

@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer;
+
+use Composer\Console\HtmlOutputFormatter;
+
+class HtmlOutputFormatterTest extends \PHPUnit_Framework_TestCase
+{
+    public function testFormatting()
+    {
+        $formatter = new HtmlOutputFormatter;
+
+        return $this->assertEquals(
+            'Reading composer.json of <span style="color:green;">https://github.com/ccqgithub/sherry-php</span> (<span style="color:yellow;">master</span>)',
+            $formatter->format('Reading composer.json of <info>https://github.com/ccqgithub/sherry-php</info> (<comment>master</comment>)')
+        );
+    }
+}