[FrameworkBundle] Replace var_export with VarExporter to use array short syntax

Author: alexandre-daubois

Secrets/SodiumVault.php

@@ -12,6 +12,7 @@
 namespace Symfony\Bundle\FrameworkBundle\Secrets;
 
 use Symfony\Component\DependencyInjection\EnvVarLoaderInterface;
+use Symfony\Component\VarExporter\VarExporter;
 
 /**
  * @author Tobias Schultze <http://tobion.de>
@@ -89,7 +90,7 @@ public function seal(string $name, string $value): void
         $list = $this->list();
         $list[$name] = null;
         uksort($list, 'strnatcmp');
-        file_put_contents($this->pathPrefix.'list.php', sprintf("<?php\n\nreturn %s;\n", var_export($list, true), \LOCK_EX));
+        file_put_contents($this->pathPrefix.'list.php', sprintf("<?php\n\nreturn %s;\n", VarExporter::export($list), \LOCK_EX));
 
         $this->lastMessage = sprintf('Secret "%s" encrypted in "%s"; you can commit it.', $name, $this->getPrettyPath(\dirname($this->pathPrefix).\DIRECTORY_SEPARATOR));
     }
@@ -141,7 +142,7 @@ public function remove(string $name): bool
 
         $list = $this->list();
         unset($list[$name]);
-        file_put_contents($this->pathPrefix.'list.php', sprintf("<?php\n\nreturn %s;\n", var_export($list, true), \LOCK_EX));
+        file_put_contents($this->pathPrefix.'list.php', sprintf("<?php\n\nreturn %s;\n", VarExporter::export($list), \LOCK_EX));
 
         $this->lastMessage = sprintf('Secret "%s" removed from "%s".', $name, $this->getPrettyPath(\dirname($this->pathPrefix).\DIRECTORY_SEPARATOR));