Fixed Jenkins GCC protected destructor error.

src/blackmisc/aviation/modulator.h

@@ -88,6 +88,9 @@ namespace BlackMisc
             //! \copydoc CValueObject::convertToQString
             QString convertToQString(bool i18n = false) const;
 
+            //! Destructor
+            virtual ~CModulator();
+
         protected:
             //! Default constructor
             CModulator();
@@ -95,9 +98,6 @@ namespace BlackMisc
             //! Constructor
             CModulator(const QString &name, const BlackMisc::PhysicalQuantities::CFrequency &activeFrequency, const BlackMisc::PhysicalQuantities::CFrequency &standbyFrequency);
 
-            //! Destructor
-            virtual ~CModulator();
-
             //! Set active frequency
             void setFrequencyActiveKHz(double frequencyKHz);