puppet-lint: Don't have quoted strings containing only a variable.

manifests/devs.pp

@@ -67,7 +67,7 @@ define arc::devkeys($key, $ensure='enabled', $homepath='/home')
     ensure_line {
 	$title:
 	    file => $sshauthfile,
-	    line => "$key",
+	    line => $key,
 	    require => File[$sshauthfile];
     }
 }