QtWidgets: use new qUtf16Printable() instead of qPrintable()

This is more efficient and works even with non-US-ASCII
QStrings.

Change-Id: I4ca19de60347ded03022ef8540a6708c563bc9d7
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/widgets/graphicsview/qgraphicsanchorlayout_p.cpp b/src/widgets/graphicsview/qgraphicsanchorlayout_p.cpp
index dac8e61645..04a844ce4e 100644
--- a/src/widgets/graphicsview/qgraphicsanchorlayout_p.cpp
+++ b/src/widgets/graphicsview/qgraphicsanchorlayout_p.cpp
@@ -2983,7 +2983,7 @@ void QGraphicsAnchorLayoutPrivate::dumpGraph(const QString &name)
 {
     QFile file(QString::fromLatin1("anchorlayout.%1.dot").arg(name));
     if (!file.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Truncate))
-        qWarning("Could not write to %s", file.fileName().toLocal8Bit().constData());
+        qWarning("Could not write to %ls", qUtf16Printable(file.fileName()));
 
     QString str = QString::fromLatin1("digraph anchorlayout {\nnode [shape=\"rect\"]\n%1}");
     QString dotContents = graph[0].serializeToDot();