kconfig: qconf: confine {begin,end}Group to constructor and destructor

Call beginGroup() in the the constructor and endGroup() in the
destructor. This looks cleaner.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

scripts/kconfig/qconf.cc

@@ -37,6 +37,12 @@ QAction *ConfigMainWindow::saveAction;
 ConfigSettings::ConfigSettings()
 	: QSettings("kernel.org", "qconf")
 {
+	beginGroup("/kconfig/qconf");
+}
+
+ConfigSettings::~ConfigSettings()
+{
+	endGroup();
 }
 
 /**
@@ -1829,7 +1835,6 @@ int main(int ac, char** av)
 	configApp = new QApplication(ac, av);
 
 	configSettings = new ConfigSettings();
-	configSettings->beginGroup("/kconfig/qconf");
 	v = new ConfigMainWindow();
 
 	//zconfdump(stdout);
@@ -1837,7 +1842,6 @@ int main(int ac, char** av)
 	v->show();
 	configApp->exec();
 
-	configSettings->endGroup();
 	delete configSettings;
 	delete v;
 	delete configApp;

scripts/kconfig/qconf.h

@@ -24,6 +24,7 @@ class ConfigMainWindow;
 class ConfigSettings : public QSettings {
 public:
 	ConfigSettings();
+	~ConfigSettings(void);
 	QList<int> readSizes(const QString& key, bool *ok);
 	bool writeSizes(const QString& key, const QList<int>& value);
 };