sys-boot/efibootmgr - Homepage deviates from that one given on wiki.gentoo.org
It points to https://github.com/rhinstaller/efibootmgr and that page is ok :/
they have the same code anyways
Let's see what happens. https://github.com/rhinstaller/efibootmgr/pull/46
This seems to have been resolved all around now.