add getTerm to SpanRegexQuery

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@345677 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/lucene/search/regex/SpanRegexQuery.java

@@ -23,6 +23,8 @@ public class SpanRegexQuery extends SpanQuery {
     this.term = term;
   }
 
+  public Term getTerm() { return term; }
+
   public Query rewrite(IndexReader reader) throws IOException {
     Query orig = new RegexQuery(term).rewrite(reader);