Issue #23071: Added missing names to codecs.__all__.  Patch by Martin Panter.

--HG--
branch : 3.4
Issue #23071: Added missing names to codecs.__all__.  Patch by Martin Panter.
Issue #23071: "namereplace_errors" was added only in 3.5.

--HG--
branch : 3.4
Null merge
Issue #19104: pprint now produces evaluable output for wrapped strings.

--HG--
branch : 3.4
Issue #19104: pprint now produces evaluable output for wrapped strings.
Issue #22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(),
instead of reading /dev/urandom, to get pseudo-random bytes.