Git: Modernize

* Use auto
* Use override
* Use some member initializers

Change-Id: I3ca000d1c8e4d02331d58b85e68e4d771c636b29
Reviewed-by: André Hartmann <aha_1980@gmx.de>

src/plugins/git/gerrit/gerritoptionspage.h

@@ -67,7 +67,7 @@ class GerritOptionsPage : public VcsBase::VcsBaseOptionsPage
 
 public:
     GerritOptionsPage(const QSharedPointer<GerritParameters> &p, QObject *parent = nullptr);
-    ~GerritOptionsPage();
+    ~GerritOptionsPage() override;
 
     QWidget *widget() override;
     void apply() override;