Small code style changes.

libpyside/pysideqflags.cpp

@@ -61,10 +61,8 @@ extern "C" {
 
     static long getNumberValue(PyObject* v)
     {
-        PyObject* number = PyNumber_Long(v);
-        long result = PyLong_AsLong(number);
-        Py_XDECREF(number);
-        return result;
+        Shiboken::AutoDecRef number(PyNumber_Long(v));
+        return PyLong_AsLong(number);
     }
 
     PyObject* PySideQFlagsRichCompare(PyObject* self, PyObject* other, int op)