v0.2.55..v0.2.56 changeset ExtentCmd.cpp

diff --git a/hoot-core/src/main/cpp/hoot/core/cmd/ExtentCmd.cpp b/hoot-core/src/main/cpp/hoot/core/cmd/ExtentCmd.cpp
index 5f7b81d..1c7db2b 100644
--- a/hoot-core/src/main/cpp/hoot/core/cmd/ExtentCmd.cpp
+++ b/hoot-core/src/main/cpp/hoot/core/cmd/ExtentCmd.cpp
@@ -49,7 +49,7 @@ public:
 
   static string className() { return "hoot::ExtentCmd"; }
 
-  ExtentCmd() {}
+  ExtentCmd() = default;
 
   virtual QString getName() const override { return "extent"; }