dns: Fixed set-named-sysconfig by forcing the lens

dns/manifests/init.pp

@@ -103,8 +103,9 @@ class dns::server {
         }
         "fedora","centos","redhat": {
             augeas { "set-named-sysconfig":
-                context => "/files/etc/sysconfi/named",
                 changes => "set OPTIONS '${options}'",
+                incl    => "/etc/sysconfig/named",
+                lens    => "Shellvars.lns",
                 notify  => Service["named"],
                 require => Package["bind"],
             }