fix errors found through static code analysis, fixes #4562

Closes #4562

Merge request studip/studip!3375

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/classes/JsonApi/Routes/Files/FileRefsContentShow.php b/lib/classes/JsonApi/Routes/Files/FileRefsContentShow.php
index 69f71ec..6cb6ef3 100644
--- a/lib/classes/JsonApi/Routes/Files/FileRefsContentShow.php
+++ b/lib/classes/JsonApi/Routes/Files/FileRefsContentShow.php
@@ -6,6 +6,7 @@ use JsonApi\Errors\AuthorizationFailedException;
 use JsonApi\Errors\InternalServerError;
 use JsonApi\Errors\RecordNotFoundException;
 use JsonApi\NonJsonApiController;
+use Psr\Container\ContainerInterface;
 use Psr\Http\Message\ResponseInterface as Response;
 use Psr\Http\Message\ServerRequestInterface as Request;
 use Psr\Http\Message\StreamFactoryInterface;
@@ -72,7 +73,7 @@ class FileRefsContentShow extends NonJsonApiController
                 );
             }
 
-            list($done, $response) = $this->handleEtag($request, $response, $fileRef);
+            [$done, $response] = $this->handleEtag($request, $response, $fileRef);
             if ($done) {
                 return $response;
             }