Add explicit/override remove not necessary Q_REQUIRED_RESULT

src/pimuniqueapplication.h

@@ -32,7 +32,7 @@ class KONTACTINTERFACE_EXPORT PimUniqueApplication : public QApplication
 
 public:
     explicit PimUniqueApplication(int &argc, char **argv[]);
-    ~PimUniqueApplication();
+    ~PimUniqueApplication() override;
 
     void setAboutData(KAboutData &aboutData);
 

src/plugin.h

@@ -220,7 +220,7 @@ public:
     /**
      * Registers the client at DBus and returns the dbus identifier.
      */
-    Q_REQUIRED_RESULT QString registerClient();
+    QString registerClient();
 
     /**
      * Return the weight of the plugin. The higher the weight the lower it will

src/uniqueapphandler.h

@@ -31,7 +31,7 @@ class KONTACTINTERFACE_EXPORT UniqueAppHandler : public QObject
     Q_CLASSINFO("D-Bus Interface", "org.kde.PIMUniqueApplication")
 
 public:
-    UniqueAppHandler(Plugin *plugin);
+    explicit UniqueAppHandler(Plugin *plugin);
     ~UniqueAppHandler() override;
 
     /// This must be reimplemented so that app-specific command line options can be parsed