Webservice: List issued certificates

The complaints from the GitHub Actions report.

classes/external.php

@@ -282,7 +282,9 @@ public static function list_issues($timecreatedfrom = null, $userid = null, $cus
         $output = [];
 
         list($namefields, $nameparams) = \core_user\fields::get_sql_fullname();
-        $sql = "SELECT ci.*, $namefields as fullname, u.username, u.email, ct.id as templateid, ct.name as templatename, ct.contextid
+        $sql = "SELECT ci.*,
+                       $namefields as fullname, u.username, u.email,
+                       ct.id as templateid, ct.name as templatename, ct.contextid
                   FROM {customcert_issues} ci
                   JOIN {user} u
                     ON ci.userid = u.id