=for apidoc Ams||dUNDERBAR
Sets up any variable needed by the C<UNDERBAR> macro. It used to define
-C<padoff_du>, but it is currently a noop. However, it is strongly adviced
+C<padoff_du>, but it is currently a noop. However, it is strongly advised
to still use it for ensuring past and future compatibility.
=for apidoc AmU||UNDERBAR