Fix

Author: sebastianbergmann

src/Runner/Baseline/Writer.php

@@ -50,7 +50,7 @@ public function write(string $baselineFile, Baseline $baseline): void
 
                 foreach ($issues as $issue) {
                     $writer->startElement('issue');
-                    $writer->writeCData($issue->description());
+                    $writer->writeCdata($issue->description());
                     $writer->endElement();
                 }