try with resources

Author: Vladimir Kotal

opengrok-indexer/src/main/java/org/opengrok/indexer/history/MercurialHistoryParserRevisionsOnly.java

@@ -59,10 +59,11 @@ void parse(File file, String sinceRevision) throws HistoryException {
 
     @Override
     public void processStream(InputStream input) throws IOException {
-        BufferedReader in = new BufferedReader(new InputStreamReader(input));
-        String s;
-        while ((s = in.readLine()) != null) {
-            visitor.accept(s);
+        try (BufferedReader in = new BufferedReader(new InputStreamReader(input))) {
+            String s;
+            while ((s = in.readLine()) != null) {
+                visitor.accept(s);
+            }
         }
     }
 }