app-misc/cbview: update EAPI 6 -> 8

Signed-off-by: David Seifert <soap@gentoo.org>

app-misc/cbview/cbview-0.06-r2.ebuild

@@ -1,7 +1,7 @@
-# Copyright 1999-2019 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=6
+EAPI=8
 
 DESCRIPTION="viewer/converter for CBR/CBZ comic book archives"
 HOMEPAGE="https://web.archive.org/web/20061108214126/http://elvine.org:80/code/cbview/"
@@ -10,10 +10,8 @@ SRC_URI="http://elvine.org/code/cbview/${P}.tar.gz"
 LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~amd64 ~ppc ~x86"
-IUSE=""
 
-RDEPEND=""
-DEPEND="${RDEPEND}
+RDEPEND="
 	dev-perl/Gtk2
 	dev-perl/String-ShellQuote
 	app-arch/unrar
@@ -21,5 +19,5 @@ DEPEND="${RDEPEND}
 
 src_install() {
 	dobin cbview
-	dodoc README TODO
+	einstalldocs
 }