Replace 0 with nullptr

So if people are using the -Wzero-as-null-pointer-constant don't get a warning when using these private QPA includes

Change-Id: I6deb089b17a844680db24998d60c94de7a1227b1
Reviewed-by: David Faure <david.faure@kdab.com>
Reviewed-by: Jesus Fernandez <Jesus.Fernandez@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gui/kernel/qplatformthemeplugin.h b/src/gui/kernel/qplatformthemeplugin.h
index 7b56879940..0f88806b0b 100644
--- a/src/gui/kernel/qplatformthemeplugin.h
+++ b/src/gui/kernel/qplatformthemeplugin.h
@@ -63,7 +63,7 @@ class Q_GUI_EXPORT QPlatformThemePlugin : public QObject
 {
     Q_OBJECT
 public:
-    explicit QPlatformThemePlugin(QObject *parent = 0);
+    explicit QPlatformThemePlugin(QObject *parent = nullptr);
     ~QPlatformThemePlugin();
 
     virtual QPlatformTheme *create(const QString &key, const QStringList &paramList) = 0;