v0.2.55..v0.2.56 changeset ElementCache.h

diff --git a/hoot-core/src/main/cpp/hoot/core/io/ElementCache.h b/hoot-core/src/main/cpp/hoot/core/io/ElementCache.h
index 95f8a3a..3ee9c62 100644
--- a/hoot-core/src/main/cpp/hoot/core/io/ElementCache.h
+++ b/hoot-core/src/main/cpp/hoot/core/io/ElementCache.h
@@ -22,7 +22,7 @@
  * This will properly maintain the copyright information. DigitalGlobe
  * copyrights will be updated automatically.
  *
- * @copyright Copyright (C) 2015, 2016, 2017, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2015, 2016, 2017, 2019, 2020 DigitalGlobe (http://www.digitalglobe.com/)
  */
 #ifndef ELEMENTCACHE_H
 #define ELEMENTCACHE_H
@@ -48,12 +48,12 @@ public:
   /**
    * @brief ElementCache
    */
-  ElementCache() { }
+  ElementCache() = default;
 
   /**
    * @brief ~ElementCache
    */
-  virtual ~ElementCache() { }
+  virtual ~ElementCache() = default;
 
   /**
    * @brief isEmpty