code: public static void addTimegateHeaders(HttpServletResponse response,
  			CaptureSearchResults results, WaybackRequest wbr,
  			boolean includeOriginal) {
  		addVaryHeader(response);
  		addLinkHeader(response, results, wbr, false, includeOriginal);
  	}
docs: Add {@code Vary: accept-datetime} header and {@code Link} header for
  timegate response. See
  {@link #generateMementoLinkHeaders(CaptureSearchResults, WaybackRequest, boolean, boolean)}
  for details of {@code Link} header.
  @param response
  @param results
  @param wbr
  @param includeOriginal