Kill trailing whitespace in erb files

app/views/post_versions/index.html.erb

@@ -1,7 +1,7 @@
 <div id="c-post-versions">
   <div id="a-index">
     <h1>Changes</h1>
-    
+
     <% if @post_versions.all.empty? %>
       <%= render "post_sets/blank" %>
     <% else %>

app/views/post_versions/search.html.erb

@@ -1,7 +1,7 @@
 <div id="c-post-versions">
   <div id="a-search">
     <h1>Search Changes</h1>
-    
+
     <div id="search">
       <%= form_tag(post_versions_path, :method => :get, :class => "simple_form") do %>
         <%= search_field "updater_name", :label => "User" %>