LUCENE-3606: Fix test; TODO: LuceneTestCase/MockDirectoryWrapper should detect this

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene3606@1211218 13f79535-47bb-0310-9956-ffa450edef68

lucene/src/test/org/apache/lucene/store/TestBufferedIndexInput.java

@@ -293,6 +293,7 @@ public class TestBufferedIndexInput extends LuceneTestCase {
         assertEquals(35, hits.length);
         writer.close();
         searcher.close();
+        reader.close();
       } finally {
         _TestUtil.rmDir(indexDir);
       }