ctucx.git: dns.nix

Add new line to zone earlier

This will make sure that you can call `toString` after `evalZone` and
then write the resulting string to file as is.

diff --git a/dns/default.nix b/dns/default.nix
@@ -29,7 +29,7 @@ let
   writeZone = name: zone:
     pkgs.writeTextFile {
       name = "${name}.zone";
-      text = toString (evalZone name zone) + "\n";
+      text = toString (evalZone name zone);
     };
 in
 

diff --git a/dns/types/zone.nix b/dns/types/zone.nix
@@ -52,6 +52,6 @@ types.submodule ({name, ...}: {
 
           ${toString SOA}
 
-        '' + concatStringsSep "\n\n" groups';
+        '' + concatStringsSep "\n\n" groups' + "\n";
   };
 })