added language vars for hardcoded <legend> headlines

cfoe

2012-07-05 4a47667d9b6d56507c649bb6f98a9161ebce8df5

 interface/web/dns/templates/dns_slave_edit.htm

@@ -4,7 +4,7 @@
<div class="panel panel_dns_slave">

    <div class="pnl_formsarea">
        <fieldset class="inlineLabels"><legend>Secondary DNS Zone</legend>
        <fieldset class="inlineLabels"><legend><tmpl_var name="secondary_zone_txt"></legend>
            <tmpl_if name="is_admin">
                <div class="ctrlHolder">
                    <tmpl_if name="edit_disabled">