Style sheet example: Fix doc url for Qt 6

Change-Id: I5c66b472b1687eec0ed1109ce2723d747b1a4193
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
(cherry picked from commit e3141d5507ba9276a5f154415e013fd66875c390)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/examples/widgets/widgets/stylesheet/mainwindow.cpp b/examples/widgets/widgets/stylesheet/mainwindow.cpp
index a8bd20e964..6e7bb295e1 100644
--- a/examples/widgets/widgets/stylesheet/mainwindow.cpp
+++ b/examples/widgets/widgets/stylesheet/mainwindow.cpp
@@ -76,10 +76,12 @@ void MainWindow::on_editStyleAction_triggered()
 
 void MainWindow::on_aboutAction_triggered()
 {
+    const QString url = QStringLiteral("http://doc.qt.io/qt-%1/stylesheet.html")
+        .arg(QT_VERSION_MAJOR);
     QMessageBox::about(this, tr("About Style sheet"),
         tr("The <b>Style Sheet</b> example shows how widgets can be styled "
-           "using <a href=\"http://doc.qt.io/qt-5/stylesheet.html\">Qt "
+           "using <a href=\"%1\">Qt "
            "Style Sheets</a>. Click <b>File|Edit Style Sheet</b> to pop up the "
            "style editor, and either choose an existing style sheet or design "
-           "your own."));
+           "your own.").arg(url));
 }