v0.2.55..v0.2.56 changeset HasPhoneNumberCriterion.h

diff --git a/hoot-core/src/main/cpp/hoot/core/criterion/HasPhoneNumberCriterion.h b/hoot-core/src/main/cpp/hoot/core/criterion/HasPhoneNumberCriterion.h
index 8867811..daa9260 100644
--- a/hoot-core/src/main/cpp/hoot/core/criterion/HasPhoneNumberCriterion.h
+++ b/hoot-core/src/main/cpp/hoot/core/criterion/HasPhoneNumberCriterion.h
@@ -22,7 +22,7 @@
  * This will properly maintain the copyright information. DigitalGlobe
  * copyrights will be updated automatically.
  *
- * @copyright Copyright (C) 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2018, 2019, 2020 DigitalGlobe (http://www.digitalglobe.com/)
  */
 
 #ifndef HAS_PHONE_NUMBER_CRITERION_H
@@ -43,7 +43,8 @@ class HasPhoneNumberCriterion : public ElementCriterion, public Configurable
 public:
   static std::string className() { return "hoot::HasPhoneNumberCriterion"; }
 
-  HasPhoneNumberCriterion();
+  HasPhoneNumberCriterion() = default;
+  virtual ~HasPhoneNumberCriterion() = default;
 
   virtual void setConfiguration(const Settings& conf);