Fix tests

Author: dunglas

tests/Bridge/Symfony/Bundle/Command/SwaggerCommandTest.php

@@ -84,11 +84,11 @@ public function testExecuteWithYamlVersion3()
 
         $expected = <<<YAML
 info:
-    title: 'My Dummy API'
-    version: 0.0.0
-    description: |
-        This is a test API.
-        Made with love
+  title: 'My Dummy API'
+  version: 0.0.0
+  description: |
+    This is a test API.
+    Made with love
 YAML;
         $this->assertContains($expected, $result, 'multiline formatting must be preserved (using literal style).');
     }