edit backend template and add a new line

templates/haproxy_backend_rule.erb

@@ -1,6 +1,7 @@
 <% if @fqdn == @haproxy_fqdn -%>
 <% if @backend_name_array and !@backend_name_array.empty? -%>
 <% @backend_name_array.each do |backend_name| -%>
+
 backend   <%= backend_name %>
 <% if @be_mode != '' -%>
 mode      <%= @be_mode %>