apply more cs rules for php-cs

src/Bundle/ChillPersonBundle/Widget/PersonListWidgetFactory.php

@@ -34,7 +34,7 @@ class PersonListWidgetFactory extends AbstractWidgetFactory
         $node->arrayNode('custom_fields')
             ->prototype('scalar')->end()
             ->info('Add some custom field to the view. Add the slug of some custom field'
-                        . ' if you want to override the view and show their value in the list')
+                        .' if you want to override the view and show their value in the list')
             ->example(['custom-field-slug-1', 'custom-field-slug-2'])
             ->requiresAtLeastOneElement()
             ->end();