Change term for PyInterpreterState_GetID

Author: ZeroIntensity

Doc/c-api/init.rst

@@ -1477,7 +1477,7 @@ All of the following functions must be called after :c:func:`Py_Initialize`.
    Return the interpreter's unique ID.  If there was any error in doing
    so then ``-1`` is returned and an error is set.
 
-   The caller must hold the GIL.
+   The caller must have an active :term:`thread state`.
 
    .. versionadded:: 3.7