Added cluster state version to the debug logging of shards instances used in search.

Author: bleskes

src/main/java/org/elasticsearch/action/search/type/TransportSearchTypeAction.java

@@ -404,7 +404,7 @@ final void innerMoveToSecondPhase() throws Exception {
  sb.append(result.shardTarget());
  }
 
- logger.debug("Moving to second phase, based on results from: {}", sb);
+ logger.debug("Moving to second phase, based on results from: {} (cluster state version: {})", sb, clusterState.version());
  }
  moveToSecondPhase();
  }