sys-fs/zfs: update live ebuild, pass --with-vendor=gentoo

Upstream PR: openzfs/zfs#10835
Bug: https://bugs.gentoo.org/712902
Bug: https://bugs.gentoo.org/739234
Package-Manager: Portage-3.0.4, Repoman-3.0.1
Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>

sys-fs/zfs/zfs-9999.ebuild

@@ -141,6 +141,7 @@ src_configure() {
 		--with-pammoduledir="$(getpam_mod_dir)"
 		--with-systemdunitdir="$(systemd_get_systemunitdir)"
 		--with-systemdpresetdir="${EPREFIX}/lib/systemd/system-preset"
+		--with-vendor=gentoo
 		$(use_enable debug)
 		$(use_enable nls)
 		$(use_enable pam)