Fix rsnapshot 1.4 compatibility

Author: rudybroersma

templates/config.erb

@@ -101,5 +101,5 @@ exclude	<%= value %>
 ###############################
 
 <% @directories.each do |source_dir| -%>
-backup	<%= @client_user %>@<%= @name %>:<%= source_dir.gsub(/\/$/, '') %>/<%= "\t" %>
+backup  <%= @client_user %>@<%= @name %>:<%= source_dir.gsub(/\/$/, '') %>/<%= "\t" %><%= "\t\t." %>
 <% end -%>