pam-login-4.0.14 creates an empty /usr/share/doc/pam-login-4.0.14 during the build: dodoc: ChangeLog does not exist dodoc: NEWS does not exist dodoc: README does not exist dodoc: TODO does not exist >>> Completed installing pam-login-4.0.14 into /var/tmp/portage/pam-login-4.0.14/image/
pam-login is dead
Really, they are not fatal and pam-login is going to fade hopefully soon.