MDL-69166 core_payment: rename some functions

admin/settings/payment.php

@@ -1,6 +1,26 @@
 <?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-// This file defines settingpages and externalpages under the "Payment" category
+/**
+ * Adds payments links to the admin tree
+ *
+ * @package    core
+ * @copyright  2020 Marina Glancy
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
 
 $ADMIN->add('payment', new admin_externalpage(
     'paymentaccounts',