See tracker.
+ 30 Jul 2013; Mikle Kolyada <zlogene@gentoo.org> -g-cpan-0.13.02.ebuild, + -g-cpan-0.14.0.ebuild, -g-cpan-0.15.0-r1.ebuild, -g-cpan-0.16.2.ebuild, + -g-cpan-0.16.3.ebuild, -g-cpan-0.16.4.ebuild: + drop old wrt bug #478762 +