sys-devel/m4: Use branding.eclass

Signed-off-by: James Le Cuirot <chewi@gentoo.org>

sys-devel/m4/m4-1.4.20.ebuild

@@ -1,10 +1,10 @@
-# Copyright 1999-2025 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
 VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/m4.asc
-inherit flag-o-matic verify-sig
+inherit branding flag-o-matic verify-sig
 
 DESCRIPTION="GNU macro processor"
 HOMEPAGE="https://www.gnu.org/software/m4/m4.html"
@@ -62,11 +62,6 @@ src_configure() {
 
 	local -a myeconfargs=(
 		--enable-changeword
-
-		--with-packager="Gentoo Linux"
-		--with-packager-version="${PVR}"
-		--with-packager-bug-reports="https://bugs.gentoo.org/"
-
 		$(usex nls '' '--disable-nls')
 
 		# Disable automagic dependency over libsigsegv; see bug #278026