Make filename translatable
See https://chat.civicrm.org/civicrm/pl/r6ezfhzeufghzenx45qh46qj7y, where the use-case is to alter the filename, but also it should be translatable, it just has to be a valid filename, hence the extra wrapper to munge it.
See https://chat.civicrm.org/civicrm/pl/r6ezfhzeufghzenx45qh46qj7y, where the use-case is to alter the filename, but also it should be translatable, it just has to be a valid filename, hence the extra wrapper to munge it.