fixed CS

Author: fabpot

src/Symfony/Bridge/Twig/Tests/Extension/FormExtensionBootstrap4HorizontalLayoutTest.php

@@ -63,7 +63,7 @@ protected function renderForm(FormView $view, array $vars = array())
 
     protected function renderLabel(FormView $view, $label = null, array $vars = array())
     {
-        if ($label !== null) {
+        if (null !== $label) {
             $vars += array('label' => $label);
         }
 

src/Symfony/Bridge/Twig/Tests/Extension/FormExtensionBootstrap4LayoutTest.php

@@ -85,7 +85,7 @@ protected function renderForm(FormView $view, array $vars = array())
 
     protected function renderLabel(FormView $view, $label = null, array $vars = array())
     {
-        if ($label !== null) {
+        if (null !== $label) {
             $vars += array('label' => $label);
         }