Used Q_UNUSED rather than UNUSED

git-svn-id: http://svn.osgeo.org/qgis/trunk@8464 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/core/qgsvectorlayer.cpp

@@ -340,7 +340,7 @@ void QgsVectorLayer::drawLabels(QPainter * p, const QgsRect& viewExtent, const Q
     }
     catch (QgsCsException &e)
     {
-      UNUSED(e);
+      Q_UNUSED(e);
       QgsLogger::critical("Error projecting label locations, caught in " + QString(__FILE__) + ", line " +QString(__LINE__));
     }