Kill trailing whitespace in erb files

app/views/dmails/search.html.erb

@@ -3,12 +3,12 @@
     <h1>Search Messages</h1>
     <%= form_tag(dmails_path, :method => :get, :class => "simple_form") do %>
       <%= hidden_field_tag :folder, params[:folder] %>
-      
+
       <%= search_field "message_matches", :label => "Message" %>
       <%= search_field "to_name", :label => "To" %>
       <%= search_field "from_name", :label => "From" %>
       <%= submit_tag "Search" %>
-    <% end %>    
+    <% end %>
   </div>
 </div>