[calamares] Apply coding style

src/calamares/CalamaresVersion.h.in

@@ -14,4 +14,4 @@
 
 #cmakedefine CALAMARES_TRANSLATION_LANGUAGES "${CALAMARES_TRANSLATION_LANGUAGES}"
 
-#endif // CALAMARES_VERSION_H
+#endif  // CALAMARES_VERSION_H

src/calamares/progresstree/ProgressTreeView.cpp

@@ -76,10 +76,9 @@ ProgressTreeView::setModel( QAbstractItemModel* model )
     QTreeView::setModel( model );
     expandAll();
 
-    connect(
+    connect( Calamares::ViewManager::instance(),
-        Calamares::ViewManager::instance(),
+             &Calamares::ViewManager::currentStepChanged,
-        &Calamares::ViewManager::currentStepChanged,
+             this,
-        this,
+             [this]() { viewport()->update(); },
-        [this]() { viewport()->update(); },
+             Qt::UniqueConnection );
-        Qt::UniqueConnection );
 }