cs: Fix code style (safe rules only).

src/Bundle/ChillActivityBundle/Export/Aggregator/ActivityUserAggregator.php

@@ -1,13 +1,21 @@
 <?php
 
+/**
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
 namespace Chill\ActivityBundle\Export\Aggregator;
 
-use Chill\MainBundle\Repository\UserRepository;
-use Symfony\Component\Form\FormBuilderInterface;
-use Doctrine\ORM\QueryBuilder;
-use Chill\MainBundle\Export\AggregatorInterface;
-use Symfony\Component\Security\Core\Role\Role;
 use Chill\ActivityBundle\Security\Authorization\ActivityStatsVoter;
+use Chill\MainBundle\Export\AggregatorInterface;
+use Chill\MainBundle\Repository\UserRepository;
+use Closure;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Security\Core\Role\Role;
 
 class ActivityUserAggregator implements AggregatorInterface
 {
@@ -45,13 +53,13 @@ class ActivityUserAggregator implements AggregatorInterface
         // nothing to add
     }
 
-    public function getLabels($key, $values, $data): \Closure
+    public function getLabels($key, $values, $data): Closure
     {
         // preload users at once
         $this->userRepository->findBy(['id' => $values]);
 
-        return function($value) {
-            if ($value === '_header') {
+        return function ($value) {
+            if ('_header' === $value) {
                 return 'activity user';
             }
 
@@ -61,7 +69,7 @@ class ActivityUserAggregator implements AggregatorInterface
 
     public function getQueryKeys($data)
     {
-        return [ self::KEY ];
+        return [self::KEY];
     }
 
     public function getTitle(): string