v0.2.55..v0.2.56 changeset DiffCmd.cpp

diff --git a/hoot-core/src/main/cpp/hoot/core/cmd/DiffCmd.cpp b/hoot-core/src/main/cpp/hoot/core/cmd/DiffCmd.cpp
index 083e711..fc3d68e 100644
--- a/hoot-core/src/main/cpp/hoot/core/cmd/DiffCmd.cpp
+++ b/hoot-core/src/main/cpp/hoot/core/cmd/DiffCmd.cpp
@@ -54,7 +54,7 @@ public:
 
   static string className() { return "hoot::DiffCmd"; }
 
-  DiffCmd() { }
+  DiffCmd() = default;
 
   virtual QString getName() const override { return "diff"; }