Change term for PyThreadState_SetAsyncEx

Author: ZeroIntensity

Doc/c-api/init.rst

@@ -1537,7 +1537,7 @@ All of the following functions must be called after :c:func:`Py_Initialize`.
    Asynchronously raise an exception in a thread. The *id* argument is the thread
    id of the target thread; *exc* is the exception object to be raised. This
    function does not steal any references to *exc*. To prevent naive misuse, you
-   must write your own C extension to call this.  Must be called with the GIL held.
+   must write your own C extension to call this.  Must be called with an active :term:`thread state`.
    Returns the number of thread states modified; this is normally one, but will be
    zero if the thread id isn't found.  If *exc* is ``NULL``, the pending
    exception (if any) for the thread is cleared. This raises no exceptions.