Fix minor visual bug in backup files list

main/coursecopy/classes/CourseArchiver.class.php

@@ -154,7 +154,7 @@ class CourseArchiver
                     $date = $file_parts[0];
                     $ext = $file_parts[1];
                     if ($ext == 'zip' && ($user_id != null && $owner_id == $user_id || $user_id == null)) {
-                        $date = substr($date, 0, 4) . '-' . substr($date, 4, 2) . '-' . substr($date, 6, 2) . ' ' . substr($date, 8, 2) . ':' . substr($date, 10, 2) . ':' . substr($date, 12, 2);
+                        $date = substr($date, 0, 4) . '-' . substr($date, 4, 2) . '-' . substr($date, 6, 2) . ' ' . substr($date, 9, 2) . ':' . substr($date, 11, 2) . ':' . substr($date, 13, 2);
                         $backup_files[] = array('file' => $file, 'date' => $date, 'course_code' => $course_code);
                     }
                 }