fix indentation

tests/Monolog/Handler/AmqpExchangeMock.php

@@ -8,21 +8,22 @@
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
  */
+
 namespace Monolog\Handler;
 
 class MockAMQPExchange extends \AMQPExchange
 {
-public function __construct()
-{
-}
+    public function __construct()
+    {
+    }
 
-public function publish($message, $routing_key, $params = 0, $attributes = array())
-{
-return true;
-}
+    public function publish($message, $routing_key, $params = 0, $attributes = array())
+    {
+        return true;
+    }
 
-public function setName($name)
-{
-return true;
-}
+    public function setName($name)
+    {
+        return true;
+    }
 }