--- vendor/symfony/http-foundation/AcceptHeaderItem.php.orig	2020-04-06 22:16:57.390146406 +0200
+++ ../../nya/AcceptHeaderItem.php	2020-04-06 12:45:24.006412428 +0200
@@ -36,7 +36,7 @@
      *
      * @return self
      */
-    public static function fromString(?string $itemValue)
+    public static function fromString(string $itemValue)
     {
         $parts = HeaderUtils::split($itemValue ?? '', ';=');