Update references specifying "Macintosh" to mean OS X semantics and not Mac OS
9.

Applies patch #1095802.  Thanks Jack Jansen.
diff --git a/Doc/ext/extending.tex b/Doc/ext/extending.tex
index 693af1d..bc2f9cb 100644
--- a/Doc/ext/extending.tex
+++ b/Doc/ext/extending.tex
@@ -374,7 +374,7 @@
 \cdata{_PyImport_Inittab} table.  The easiest way to handle this is to 
 statically initialize your statically-linked modules by directly
 calling \cfunction{initspam()} after the call to
-\cfunction{Py_Initialize()} or \cfunction{PyMac_Initialize()}:
+\cfunction{Py_Initialize()}:
 
 \begin{verbatim}
 int
@@ -426,7 +426,6 @@
 (chapter \ref{building}) and additional information that pertains only
 to building on Windows (chapter \ref{building-on-windows}) for more
 information about this.
-% XXX Add information about Mac OS
 
 If you can't use dynamic loading, or if you want to make your module a
 permanent part of the Python interpreter, you will have to change the