lib: rename privileged -> rootScript

The naming is now analogous the related function `script`.

modules/lnd.nix

@@ -244,7 +244,7 @@ in {
             done
           '')
           # Setting macaroon permission for other users needs root permissions
-          (nbLib.privileged "lnd-create-macaroons" ''
+          (nbLib.rootScript "lnd-create-macaroons" ''
             umask ug=r,o=
             ${lib.concatMapStrings (macaroon: ''
               echo "Create custom macaroon ${macaroon}"

pkgs/lib.nix

@@ -70,7 +70,7 @@ let self = {
   '';
 
   # Used for ExecStart*
-  privileged = name: src: "+${self.script name src}";
+  rootScript = name: src: "+${self.script name src}";
 
   cliExec = mkOption {
     # Used by netns-isolation to execute the cli in the service's private netns