Fixed compiler warning

git-svn-id: http://svn.osgeo.org/qgis/trunk@6623 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/app/qgsabout.cpp

@@ -229,6 +229,7 @@ void QgsAbout::openUrl(QString url)
       reinterpret_cast<const UInt8*>(url.utf8().data()), url.length(),
       kCFStringEncodingUTF8, NULL);
   OSStatus status = LSOpenCFURLRef(urlRef, NULL);
+  status = 0; // avoid compiler warnings
   CFRelease(urlRef);
 #else
   QSettings settings;