unhardcode the path of the named local file in /etc/named.conf

Author: tampakrap

templates/named.conf.erb

@@ -1,3 +1,3 @@
 include "<%=scope.lookupvar("bind::params::config_base_dir")%>/acls.conf";
 include "<%=scope.lookupvar("bind::params::config_base_dir")%>/named.conf.options";
-include "<%=scope.lookupvar("bind::params::config_base_dir")%>/named.conf.local";
+include "<%=scope.lookupvar("bind::params::config_base_dir")%>/<%=scope.lookupvar("bind::params::named_local_name")%>";