sys-power/thermald: use wheel group for policy controlling

thanks Thomas Deutschmann for the suggestion
Closes: https://bugs.gentoo.org/755137
Package-Manager: Portage-3.0.13, Repoman-3.0.2
Signed-off-by: Yixun Lan <dlan@gentoo.org>

sys-power/thermald/thermald-2.4.1-r1.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -29,6 +29,9 @@ S=${WORKDIR}/thermal_daemon-${PV}
 DOCS=( thermal_daemon_usage.txt README.txt )
 
 src_prepare() {
+	sed -i -e "/group=/s/power/wheel/g" \
+		data/org.freedesktop.thermald.conf || die
+
 	default
 	eautoreconf
 }