ISTWCMS-5754: restore part of comment likely accidentally removed in rebase

src/Controller/UwDownloadCsvController.php

@@ -131,7 +131,7 @@ class UwDownloadCsvController extends ControllerBase {
       // Step through each of the nodes and get the info.
       foreach ($nodes as $node) {
 
-        // Pull out the info about the node.
+        // Pull out the info about the node, making sure the title is CSV-safe.
         $data = [
           'nid' => $node->id(),
           'title' => '"' . str_replace('"', '""', $node->getTitle()) . '"',