Here are actually two buggy packages, both installing broken MANPATH=/usr/share/man/mann/ And, in addition, only one should install the manpage.
*tklib-0.6 (06 Jun 2013) 06 Jun 2013; Justin Lecher <jlec@gentoo.org> tklib-0.5.ebuild, tklib-0.5-r1.ebuild, +tklib-0.6.ebuild, metadata.xml: Version BUmp, fix file collision, #472336