Otherwise REQUIRED_USE will fail with default (empty) L10N.
Package-Manager: Portage-2.3.19, Repoman-2.3.6
-# Copyright 1999-2017 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=6
KEYWORDS="-* ~amd64"
IUSE_L10N=(en ar cs de el es fr he hu it ko pl pt ro ru th tr vi zh-CN zh-TW)
-IUSE="+rastertokpsl-fix ${IUSE_L10N[@]/#/l10n_}"
+IUSE="+rastertokpsl-fix +${IUSE_L10N[@]/#/l10n_}"
REQUIRED_USE="|| ( ${IUSE_L10N[@]/#/l10n_} )"
RDEPEND="net-print/cups"