Issue #20491: The textwrap.TextWrapper class now honors non-breaking spaces.

Based on patch by Kaarle Ritvanen.

diff --cc Misc/NEWS
index dbee558fedc61a9e6906cb6ddb0a8cda75b38a4a,98301ccdb712e7dbea58d5f4923ae05fbf60dbeb..460986117a35672dc88476c93283f1eff301f82c
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -22,8 -22,84 +22,6 @@@ Core and Builtin
  - Issue #23782: Fixed possible memory leak in _PyTraceback_Add() and exception
    loss in PyTraceBack_Here().
  
 -- Issue #28471: Fix "Python memory allocator called without holding the GIL"
 -  crash in socket.setblocking.
 -
 -
 -Library
 --------
 -
 -- Issue #20491: The textwrap.TextWrapper class now honors non-breaking spaces.
 -  Based on patch by Kaarle Ritvanen.
 -
--- Issue #28353: os.fwalk() no longer fails on broken links.
 -
 -- Issue #28430: Fix iterator of C implemented asyncio.Future doesn't accept
 -  non-None value is passed to it.send(val).
 -
 -- Issue #27025: Generated names for Tkinter widgets now start by the "!" prefix
 -  for readability (was "`").
 -
 -- Issue #25464: Fixed HList.header_exists() in tkinter.tix module by addin
 -  a workaround to Tix library bug.
 -
 -- Issue #28488: shutil.make_archive() no longer adds entry "./" to ZIP archive.
 -
 -- Issue #25953: re.sub() now raises an error for invalid numerical group
 -  reference in replacement template even if the pattern is not found in
 -  the string.  Error message for invalid group reference now includes the
 -  group index and the position of the reference.
 -  Based on patch by SilentGhost.
 -
 -- Issue #18219: Optimize csv.DictWriter for large number of columns.
 -  Patch by Mariatta Wijaya.
 -
 -- Issue #28448: Fix C implemented asyncio.Future didn't work on Windows.
 -
 -- Issue #28480: Fix error building socket module when multithreading is
 -  disabled.
 -
 -- Issue #24452: Make webbrowser support Chrome on Mac OS X.
 -
 -- Issue #20766: Fix references leaked by pdb in the handling of SIGINT
 -  handlers.
 -
 -- Issue #28492: Fix how StopIteration exception is raised in _asyncio.Future.
 -
 -- Issue #28500: Fix asyncio to handle async gens GC from another thread.
 -
 -- Issue #26923: Fix asyncio.Gather to refuse being cancelled once all
 -  children are done.
 -  Patch by Johannes Ebke.
 -
 -- Issue #26796: Don't configure the number of workers for default
 -  threadpool executor.
 -  Initial patch by Hans Lawrenz.
 -
 -Build
 ------
 -
 -- Issue #28208: Update Windows build to use SQLite 3.14.2.0.
 -
 -- Issue #28248: Update Windows build to use OpenSSL 1.0.2j.
 -
 -Tests
 ------
 -
 -- Issue #26944: Fix test_posix for Android where 'id -G' is entirely wrong or
 -  missing the effective gid.
 -
 -- Issue #28409: regrtest: fix the parser of command line arguments.
 -
 -
 -What's New in Python 3.6.0 beta 2
 -=================================
 -
 -*Release date: 2016-10-10*
 -
 -Core and Builtins
 ------------------
--
  - Issue #28183: Optimize and cleanup dict iteration.
  
  - Issue #26081: Added C implementation of asyncio.Future.
@@@ -99,62 -169,6 +97,67 @@@
  Library
  -------
  
++- Issue #20491: The textwrap.TextWrapper class now honors non-breaking spaces.
++  Based on patch by Kaarle Ritvanen.
++
++- Issue #28353: os.fwalk() no longer fails on broken links.
++
 +- Issue #28430: Fix iterator of C implemented asyncio.Future doesn't accept
 +  non-None value is passed to it.send(val).
 +
 +- Issue #27025: Generated names for Tkinter widgets now start by the "!" prefix
 +  for readability (was "`").
 +
 +- Issue #25464: Fixed HList.header_exists() in tkinter.tix module by addin
 +  a workaround to Tix library bug.
 +
 +- Issue #28488: shutil.make_archive() no longer adds entry "./" to ZIP archive.
 +
 +- Issue #25953: re.sub() now raises an error for invalid numerical group
 +  reference in replacement template even if the pattern is not found in
 +  the string.  Error message for invalid group reference now includes the
 +  group index and the position of the reference.
 +  Based on patch by SilentGhost.
 +
 +- Issue #28469: timeit now uses the sequence 1, 2, 5, 10, 20, 50,... instead
 +  of 1, 10, 100,... for autoranging.
 +
 +- Issue #28115: Command-line interface of the zipfile module now uses argparse.
 +  Added support of long options.
 +
 +- Issue #18219: Optimize csv.DictWriter for large number of columns.
 +  Patch by Mariatta Wijaya.
 +
 +- Issue #28448: Fix C implemented asyncio.Future didn't work on Windows.
 +
 +- Issue #23214: In the "io" module, the argument to BufferedReader and
 +  BytesIO's read1() methods is now optional and can be -1, matching the
 +  BufferedIOBase specification.
 +
 +- Issue #28480: Fix error building socket module when multithreading is
 +  disabled.
 +
 +- Issue #28240: timeit: remove ``-c/--clock`` and ``-t/--time`` command line
 +  options which were deprecated since Python 3.3.
 +
 +- Issue #28240: timeit now repeats the benchmarks 5 times instead of only 3
 +  to make benchmarks more reliable.
 +
 +- Issue #28240: timeit autorange now uses a single loop iteration if the
 +  benchmark takes less than 10 seconds, instead of 10 iterations.
 +  "python3 -m timeit -s 'import time' 'time.sleep(1)'" now takes 4 seconds
 +  instead of 40 seconds.
 +
 +- Distutils.sdist now looks for README and setup.py files with case
 +  sensitivity. This behavior matches that found in Setuptools 6.0 and
 +  later. See `setuptools 100
 +  <https://github.com/pypa/setuptools/issues/100>`_ for rationale.
 +
 +- Issue #24452: Make webbrowser support Chrome on Mac OS X.
 +
 +- Issue #20766: Fix references leaked by pdb in the handling of SIGINT
 +  handlers.
 +
  - Issue #27998: Fixed bytes path support in os.scandir() on Windows.
    Patch by Eryk Sun.