include missed QPainterPath dependency

src/qt/trafficgraphwidget.cpp

@@ -6,6 +6,7 @@
 #include <qt/clientmodel.h>
 
 #include <QPainter>
+#include <QPainterPath>
 #include <QColor>
 #include <QTimer>
 
@@ -79,7 +80,7 @@ void TrafficGraphWidget::paintEvent(QPaintEvent *)
 
     const QString units     = tr("KB/s");
     const float yMarginText = 2.0;
-    
+
     // draw lines
     painter.setPen(axisCol);
     painter.drawText(XMARGIN, YMARGIN + h - h * val / fMax-yMarginText, QString("%1 %2").arg(val).arg(units));