MDL-69772 admin: Fix legacy coding style on Location settings admin page

No actual change here. Just polishing the coding style and adding
fulltree check.

admin/settings/location.php

@@ -1,21 +1,57 @@
 <?php
+// This file is part of Moodle - https://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/>.
 
-if ($hassiteconfig) { // speedup for non-admins, add all caps used on this page
+/**
+ * Define administration settings on the Location settings page.
+ *
+ * @package     core
+ * @category    admin
+ * @copyright   2006 Martin Dougiamas <[email protected]>
+ * @license     https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
 
-    // "locations" settingpage
-    $temp = new admin_settingpage('locationsettings', new lang_string('locationsettings', 'admin'));
-    $temp->add(new admin_setting_servertimezone());
-    $temp->add(new admin_setting_forcetimezone());
-    $temp->add(new admin_settings_country_select('country', new lang_string('country', 'admin'), new lang_string('configcountry', 'admin'), 0));
-    $temp->add(new admin_setting_configtext('defaultcity', new lang_string('defaultcity', 'admin'), new lang_string('defaultcity_help', 'admin'), ''));
+defined('MOODLE_INTERNAL') || die();
 
-    $temp->add(new admin_setting_heading('iplookup', new lang_string('iplookup', 'admin'), new lang_string('iplookupinfo', 'admin')));
-    $temp->add(new admin_setting_configfile('geoip2file', new lang_string('geoipfile', 'admin'),
-        new lang_string('configgeoipfile', 'admin', $CFG->dataroot.'/geoip/'), $CFG->dataroot.'/geoip/GeoLite2-City.mmdb'));
-    $temp->add(new admin_setting_configtext('googlemapkey3', new lang_string('googlemapkey3', 'admin'), new lang_string('googlemapkey3_help', 'admin'), '', PARAM_RAW, 60));
+if ($hassiteconfig) {
+    $temp = new admin_settingpage('locationsettings', new lang_string('locationsettings', 'core_admin'));
 
-    $temp->add(new admin_setting_configtext('allcountrycodes', new lang_string('allcountrycodes', 'admin'), new lang_string('configallcountrycodes', 'admin'), '', '/^(?:\w+(?:,\w+)*)?$/'));
+    if ($ADMIN->fulltree) {
+        $temp->add(new admin_setting_servertimezone());
 
-    $ADMIN->add('location', $temp);
+        $temp->add(new admin_setting_forcetimezone());
+
+        $temp->add(new admin_settings_country_select('country', new lang_string('country', 'core_admin'),
+            new lang_string('configcountry', 'core_admin'), 0));
+
+        $temp->add(new admin_setting_configtext('defaultcity', new lang_string('defaultcity', 'core_admin'),
+            new lang_string('defaultcity_help', 'core_admin'), ''));
+
+        $temp->add(new admin_setting_heading('iplookup', new lang_string('iplookup', 'core_admin'),
+            new lang_string('iplookupinfo', 'core_admin')));
 
-} // end of speedup
+        $temp->add(new admin_setting_configfile('geoip2file', new lang_string('geoipfile', 'core_admin'),
+            new lang_string('configgeoipfile', 'core_admin', $CFG->dataroot . '/geoip/'),
+            $CFG->dataroot . '/geoip/GeoLite2-City.mmdb'));
+
+        $temp->add(new admin_setting_configtext('googlemapkey3', new lang_string('googlemapkey3', 'core_admin'),
+            new lang_string('googlemapkey3_help', 'core_admin'), '', PARAM_RAW, 60));
+
+        $temp->add(new admin_setting_configtext('allcountrycodes', new lang_string('allcountrycodes', 'core_admin'),
+            new lang_string('configallcountrycodes', 'core_admin'), '', '/^(?:\w+(?:,\w+)*)?$/'));
+    }
+
+    $ADMIN->add('location', $temp);
+}