fix compile error

git-svn-id: http://svn.osgeo.org/qgis/trunk@8437 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: jef

src/app/qgsabout.cpp

@@ -24,7 +24,7 @@
 #include <QFile>
 #include <QTextStream>
 #include <QImageReader>
-#include <QSqlDatabase>
+#include <QtSql/QSqlDatabase>
 #include <iostream>
 
 /* Uncomment this block to use preloaded images