message: Change to an exlusive bound in the date range test
  So that both, inclusive and exclusive, bounds are tested for date ranges
diff: @@ -77,12 +77,14 @@ mod tests {
  // add another second
  let two_secs_ahead = first_time_stamp + Duration::seconds(2);
  index_writer.add_document(doc!(date_field=>two_secs_ahead, date_field=>two_secs_ahead,date_field=>two_secs_ahead, time_i=>3i64));
  + // add three seconds
  + index_writer.add_document(doc!(date_field=>first_time_stamp + Duration::seconds(3), time_i=>4i64));
  assert!(index_writer.commit().is_ok());
  let reader = index.reader().unwrap();
  let searcher = reader.searcher();
  let reader = searcher.segment_reader(0);
  - assert_eq!(reader.num_docs(), 4);
  + assert_eq!(reader.num_docs(), 5);
  {
  let parser = QueryParser::for_index(&index, vec![date_field]);
  @@ -150,7 +152,7 @@ mod tests {
  {
  let parser = QueryParser::for_index(&index, vec![date_field]);
  let range_q = format!(
  - "[{} TO {}]",
  + "[{} TO {}}}",
  (first_time_stamp + Duration::seconds(1)).to_rfc3339(),
  (first_time_stamp + Duration::seconds(3)).to_rfc3339()
  );
  