Issue #17237: Fix crash in the ASCII decoder on m68k.

diff --cc Misc/NEWS
index d807d0bc741a5956fee3c6d1e4d68535e55b1248,bccd7f66e63e6d3cf4bed21efd5ab9b58c9f3cac..bbf694395cd80f30f10e680321206e5f43eb6a9c
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -10,26 -12,8 +10,28 @@@ What's New in Python 3.4.0 Alpha 1
  Core and Builtins
  -----------------
  
+ - Issue #17237: Fix crash in the ASCII decoder on m68k.
+ 
 +- Issue #17927: Frame objects kept arguments alive if they had been
 +  copied into a cell, even if the cell was cleared.
 +
 +- Issue #17807: Generators can now be finalized even when they are part of
 +  a reference cycle.
 +
 +- Issue #1545463: At shutdown, defer finalization of codec modules so
 +  that stderr remains usable.
 +
 +- Issue #7330: Implement width and precision (ex: "%5.3s") for the format
 +  string of PyUnicode_FromFormat() function, original patch written by Ysj Ray.
 +
 +- Issue #1545463: Global variables caught in reference cycles are now
 +  garbage-collected at shutdown.
 +
 +- Issue #17094: Clear stale thread states after fork().  Note that this
 +  is a potentially disruptive change since it may release some system
 +  resources which would otherwise remain perpetually alive (e.g. database
 +  connections kept in thread-local storage).
 +
  - Issue #17408: Avoid using an obsolete instance of the copyreg module when
    the interpreter is shutdown and then started again.
  

diff --cc Objects/unicodeobject.c
Simple merge