Prior to this release the module had an unused permission on the print-friendly page "access print anything". Instead, the page was using the core permission "access content". It occurred to me that any access control here was silly. The print-friendly page derives it's content from the normal referring page from which it is launched. Access control on the normal page is beyond the scope of this module.
So I've removed the unused permission and eliminated any access control on the print-friendly page.