krebs.tinc.*.hostsArchive: fix file mode

krebs/3modules/tinc.nix

@@ -110,8 +110,12 @@ let
         hostsArchive = mkOption {
           type = types.package;
           default = pkgs.runCommand "retiolum-hosts.tar.bz2" {} ''
-            ${pkgs.coreutils}/bin/ln -s ${tinc.config.hostsPackage} hosts
+            cp \
-            ${pkgs.gnutar}/bin/tar -hcjf $out hosts
+                --no-preserve=mode \
+                --recursive \
+                ${tinc.config.hostsPackage} \
+                hosts
+            ${pkgs.gnutar}/bin/tar -cjf $out hosts
           '';
           readOnly = true;
         };