Lint says these are bad

manifests/init.pp

@@ -60,7 +60,7 @@ class bind (
         recurse => true,
     }
 
-    file { "${namedconf}":
+    file { $namedconf:
         content => template('bind/named.conf.erb'),
     }
 

manifests/params.pp

@@ -26,6 +26,6 @@ class bind::params (
         ]
     }
     elsif $::osfamily == 'RedHat' {
-        $bind_files = ["/etc/named.root.key"]
+        $bind_files = ['/etc/named.root.key']
     }
 }