module-nginx/templates/vhost/locations/empty.erb

<% if @location_custom_cfg -%>
  <%- @location_custom_cfg.sort_by {|k,v| k}.each do |key,value| -%>
    <%- if value.is_a?(Hash) -%>
      <%- value.sort_by {|k,v| k}.each do |subkey,subvalue| -%>
        <%- Array(subvalue).each do |asubvalue| -%>
    <%= key %> <%= subkey %> <%= asubvalue %>;
        <%- end -%>
      <%- end -%>
    <%- else -%>
      <%- Array(value).each do |asubvalue| -%>
    <%= key %> <%= asubvalue %>;
      <%- end -%>
    <%- end -%>
  <%- end -%>
<% end -%>