message: Update regex_query.rs
diff: @@ -121,7 +121,6 @@ mod test {
  let searcher = index.searcher();
  {
  let mut collector = TopCollector::with_limit(2);
  -
  let regex_query = RegexQuery::new("jap[ao]n".to_string(), country_field);
  searcher.search(&regex_query, &mut collector).unwrap();
  let scored_docs = collector.score_docs();
  @@ -129,11 +128,8 @@ mod test {
  let (score, _) = scored_docs[0];
  assert_nearly_equals(1f32, score);
  }
  -
  - let searcher = index.searcher();
  {
  let mut collector = TopCollector::with_limit(2);
  -
  let regex_query = RegexQuery::new("jap[A-Z]n".to_string(), country_field);
  searcher.search(&regex_query, &mut collector).unwrap();
  let scored_docs = collector.score_docs();
  