$ euse -i resolvconf [- ] resolvconf (net-dns/bind): Enable support for net-dns/resolvconf [- ] resolvconf (net-misc/networkmanager): Use net-dns/openresolv for managing DNS informations [- ] resolvconf (net-misc/vpnc): Enable support for DNS managing framework net-dns/resolvconf It seems that net-dns/resolvconf{,-gentoo} was removed in favor of net-dns/openresolv (see bug 219270). BTW, there is a little typo in one of those descriptions. It should be "information" instead of "informations".
Thanks for reporting this, it's been fixed in all three packages in CVS. Please wait a couple of hours for the rsync servers to synchronize it all...