v0.2.55..v0.2.56 changeset MeanWordSetDistance.h

diff --git a/hoot-core/src/main/cpp/hoot/core/algorithms/string/MeanWordSetDistance.h b/hoot-core/src/main/cpp/hoot/core/algorithms/string/MeanWordSetDistance.h
index 9d76a53..e03845a 100644
--- a/hoot-core/src/main/cpp/hoot/core/algorithms/string/MeanWordSetDistance.h
+++ b/hoot-core/src/main/cpp/hoot/core/algorithms/string/MeanWordSetDistance.h
@@ -22,7 +22,7 @@
  * This will properly maintain the copyright information. DigitalGlobe
  * copyrights will be updated automatically.
  *
- * @copyright Copyright (C) 2015, 2017, 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2015, 2017, 2018, 2019, 2020 DigitalGlobe (http://www.digitalglobe.com/)
  */
 #ifndef MEANWORDSETDISTANCE_H
 #define MEANWORDSETDISTANCE_H
@@ -50,8 +50,9 @@ public:
   /**
    * @param portion The portion parameter passed off to ScoreMatrix.
    */
-  MeanWordSetDistance(StringDistancePtr d, double portion=1.0);
+  MeanWordSetDistance(StringDistancePtr d, double portion = 1.0);
   MeanWordSetDistance();
+  virtual ~MeanWordSetDistance() = default;
 
   static std::string className() { return "hoot::MeanWordSetDistance"; }