Restore backwards compatibility

Author: tvdijen

tests/SAML2/DOMDocumentFactoryTest.php

@@ -11,6 +11,8 @@
 use SimpleSAML\XML\Exception\RuntimeException;
 use SimpleSAML\XML\Exception\UnparseableXMLException;
 
+use function sprintf;
+
 class DOMDocumentFactoryTest extends \PHPUnit\Framework\TestCase
 {
     /**
@@ -128,7 +130,7 @@ public function testEmptyFileIsNotValid() : void
         $this->expectException(RuntimeException::class, 'does not have content');
         $file = realpath(dirname(__FILE__)) . DIRECTORY_SEPARATOR . 'domdocument_empty.xml';
         $this->expectException(RuntimeException::class);
-        $this->expectExceptionMessage('File "/home/runner/work/saml2/saml2/tests/SAML2/domdocument_empty.xml" does not have content');
+        $this->expectExceptionMessage(sprintf('File "%s" does not have content'));
         DOMDocumentFactory::fromFile($file);
     }