Adopt PSR-2 coding style

The Laravel framework adopts the PSR-2 coding style in version 5.1.
Laravel apps *should* adopt this coding style as well. Read the
[PSR-2 coding style guide][1] for more details and check out [PHPCS][2]
to use as a code formatting tool.

[1]: https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-2-coding-style-guide.md
[2]: https://github.com/squizlabs/PHP_CodeSniffer

tests/Bus/Commands/ComponentGroup/AddComponentGroupCommandTest.php

@@ -37,7 +37,10 @@ class AddComponentGroupCommandTest extends AbstractTestCase
         ];
 
         $object = new AddComponentGroupCommand(
-            $params['name'], $params['order'], $params['collapsed'], $params['visible']
+            $params['name'],
+            $params['order'],
+            $params['collapsed'],
+            $params['visible']
         );
 
         return compact('params', 'object');