Slightly improve buffer-related error message.

Objects/abstract.c

@@ -331,7 +331,7 @@ PyObject_GetBuffer(PyObject *obj, Py_buffer *view, int flags)
 {
 	if (!PyObject_CheckBuffer(obj)) {
 		PyErr_Format(PyExc_TypeError,
-                             "'%100s' does not have the buffer interface",
+                             "'%100s' does not support the buffer interface",
                              Py_TYPE(obj)->tp_name);
 		return -1;
 	}

Objects/memoryobject.c

@@ -255,7 +255,7 @@ PyMemoryView_GetContiguous(PyObject *obj, int buffertype, char fort)
 
     if (!PyObject_CheckBuffer(obj)) {
         PyErr_SetString(PyExc_TypeError,
-                        "object does not have the buffer interface");
+                        "object does not support the buffer interface");
         return NULL;
     }