There is a typo in the ebuild, so it tries to download a non existing file. Change line 20 from: http://dev.gentoo.org/~seemant/extras/${P}-${I18N-VER}.patch.gz to: http://dev.gentoo.org/~seemant/extras/${P}-${I18N_VER}.patch.gz and it goes fine again.
*** This bug has been marked as a duplicate of 43853 ***