sys-apps/util-linux: Sync with Gentoo

It's from Gentoo commit 78213a89b4a602460bf81ba5fab8eed561091ade.

Author: Flatcar Buildbot

sdk_container/src/third_party/portage-stable/sys-apps/util-linux/util-linux-2.38.1-r2.ebuild

@@ -15,7 +15,7 @@ if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git"
 	inherit autotools git-r3
 else
-	VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/karelzak.asc
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/karelzak.asc
 	inherit verify-sig
 
 	if [[ ${PV} != *_rc* ]] ; then

sdk_container/src/third_party/portage-stable/sys-apps/util-linux/util-linux-2.39.1-r1.ebuild

@@ -15,7 +15,7 @@ if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git"
 	inherit autotools git-r3
 else
-	VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/karelzak.asc
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/karelzak.asc
 	inherit verify-sig
 
 	if [[ ${PV} != *_rc* ]] ; then

sdk_container/src/third_party/portage-stable/sys-apps/util-linux/util-linux-2.39.2.ebuild

@@ -15,7 +15,7 @@ if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git"
 	inherit autotools git-r3
 else
-	VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/karelzak.asc
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/karelzak.asc
 	inherit verify-sig
 
 	if [[ ${PV} != *_rc* ]] ; then

sdk_container/src/third_party/portage-stable/sys-apps/util-linux/util-linux-9999.ebuild

@@ -15,7 +15,7 @@ if [[ ${PV} == 9999 ]] ; then
 	EGIT_REPO_URI="https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git"
 	inherit autotools git-r3
 else
-	VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/karelzak.asc
+	VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/karelzak.asc
 	inherit verify-sig
 
 	if [[ ${PV} != *_rc* ]] ; then