about "%u", "%lu" and "%zu" formats.

Since PyString_FromFormat and PyErr_Format have exactly the same rules
(both inherited from PyString_FromFormatV), it would be good if someone
with more LaTeX Fu changed one of them to just point to the other.
Their docs were way out of synch before this patch, and I just did a
mass copy+paste to repair that.

Not a backport candidate (this is a new feature).

documentation. Ready to be reviewed and improved upon.

They are same, so keep the original one and remove the later-added one.

path name in listdir. Fixes #1431582.
Stop overallocating MAX_PATH characters for ANSI
path names. Stop assigning to errno.

by Collin Winter.

Bugfix candidate (but I'm not going to bother).

Rev 45964 fiddled with WindowsError, and broke test_bsddb3 on all
the Windows buildbot slaves as a result.  This should repair it.

and the DOS error code in errno. Revert changes where
WindowsError catch blocks unnecessarily special-case OSError.

PY_FORMAT_SIZE_T appropriately.  Removes warnings on
OS X under gcc 4.0.1 when PY_FORMAT_SIZE_T is set to "" instead of "z" as is
needed.

stdout arguments, making it possible to redirect input and output
for remote debugging.

a couple of issues, notably handling of long file names using the
GNU LONGNAME extension.

Bug #1485447: subprocess: document that the "cwd" parameter isn't used to find the executable. Misc. other markup fixes.

longobject.c: also fix an ssize_t problem
  <a> could have been NULL, so hoist the size calc to not use <a>.

_ssl.c: under fail: self is DECREF'd, but it would have been NULL.

_elementtree.c: delete self if there was an error.

_csv.c: I'm not sure if lineterminator could have been anything other than
a string.  However, other string method calls are checked, so check this
one too.

shouldn't create a new flag when `name` is already the name of
an option flag.

is NULL, so there's no reason to do anything with it.  In the second case,
we know frame->f_exc_type is not NULL, so we can just do an INCREF.