Fix a compile error on Windows.

Include/pyerrors.h

@@ -7,7 +7,7 @@ extern "C" {
 /* Error objects */
 
 /* PyException_HEAD defines the initial segment of every exception class. */
-#define PyException_HEAD PyObject_HEAD; PyObject *dict;\
+#define PyException_HEAD PyObject_HEAD PyObject *dict;\
                          PyObject *args; PyObject *traceback;\
                          PyObject *context; PyObject *cause;