anchor.diff:              pageContext.setAttribute("greeting_content", greeting.content);
               String author;
               if (greeting.author_email == null) {
  -                author = "An anonymous person";
  +                author = "Anon";
               } else {
                   author = greeting.author_email;
                   String author_id = greeting.author_id;
  
positive.code: 
      if (greetings.isEmpty()) {
  %>
  <p>Guestbook '${fn:escapeXml(guestbookName)}' has no messages.</p>
  <%
      } else {
  %>
  
negative.code: <%
      } else {
  %>
  <p><h2>Hello!
      <a href="<%= userService.createLoginURL(request.getRequestURI()) %>">Sign in</a>
      with your Yale e-mail. Then you can post your lost or found item!</h2></p>
  <%
      }
  %>
  