MDL-19787 Migrated calls to close_window_button()

diff --git a/admin/roles/explain.php b/admin/roles/explain.php
index 64e7bc65b1876aa11b2c4eae700b6a423b825f8b..90c73fa11d8e6b556b67e4e59a9a9d1ab1b3a69a 100755 (executable)
--- a/admin/roles/explain.php
+++ b/admin/roles/explain.php
@@ -273,6 +273,6 @@ if ($userid && $capability != 'moodle/site:doanything' && !$userhascapability &&
         has_capability('moodle/site:doanything', $context, $userid)) {
     echo '<p>' . get_string('explainpermissionsdoanything', 'role', $capability) . '</p>';
 }
-close_window_button();
+echo $OUTPUT->close_window_button();
 print_footer('empty');
-?>
\ No newline at end of file
+?>