Docs: fix typo

\l instead of \\l

Amends d3117e9.

Pick-to: 6.9 6.8 6.5
Change-Id: I0b6aaef6de839f29e0671d382d4555f8ab0afe47
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

Author: moheim-qt

src/widgets/dialogs/qfiledialog.cpp

@@ -2517,7 +2517,7 @@ QUrl QFileDialog::getSaveFileUrl(QWidget *parent,
     native file dialog and not a QFileDialog. However, the native Windows file
     dialog does not support displaying files in the directory chooser. You need
     to pass the \l{QFileDialog::}{DontUseNativeDialog} option, or set the global
-    \\l{Qt::}{AA_DontUseNativeDialogs} application attribute to display files using a
+    \l{Qt::}{AA_DontUseNativeDialogs} application attribute to display files using a
     QFileDialog.
 
     Note that the \macos native file dialog does not show a title bar.