fix admin config privilegies

init.lua

@@ -55,13 +55,15 @@ if core.get_modpath("irc") then
    end
 end
 
+local privs_give_to_admin = false
+
+if admin_privs then  privs_give_to_admin = true end
+
 -- priv
 core.register_privilege("pvpinvul", {
    description = S("Invulnerable in PVP"),
-   give_to_singleplayer = false
-   if admin_privs then
-       give_to_admin = true
-   end
+   give_to_singleplayer = false,
+   give_to_admin = privs_give_to_admin,
 })