Kill trailing whitespace in scss files

app/assets/stylesheets/common/page_header.css.scss

@@ -5,34 +5,34 @@ header#top {
     font-size: 2.5em;
     margin: 5px 30px 0 30px;
   }
-  
+
   menu {
     margin-top: -2px;
     background: $menu_color;
     padding: 6px 20px;
-    
+
     form {
       display: inline-block;
-      
+
       input {
         width: 8em;
       }
     }
-    
+
     li {
       margin: 0;
       padding: 0;
     }
-    
+
     li a {
       padding: 6px 10px;
     }
   }
-  
+
   menu.main {
     margin-top: 0px;
     background: none;
-    
+
     li.current a {
       background: $menu_color;
       font-weight: bold;