fuck the zstd (xz best)

src/target/arch

@@ -91,5 +91,5 @@ _package(){
 	list_package_files | LANG=C bsdtar -cnf - --format=mtree \
 		--options='!all,use-set,type,uid,gid,mode,time,size,md5,sha256,link' \
 		--null --files-from - --exclude .MTREE | gzip -c -f -n > .MTREE
-	tar --zstd -cf $CURDIR/$name-$version-$release.pkg.tar.zst * .PKGINFO .BUILDINFO
+	tar --xz -cf $CURDIR/$name-$version-$release.pkg.tar.xz * .PKGINFO .BUILDINFO
 }