#16549: Make json.tool work again on Python 3 and add tests.  Initial patch by Berker Peksag and Serhiy Storchaka.

Initial patch by Virgil Dupras.

This commit adds "parameter" to the glossary, improves and consolidates the
"argument" glossary entry, and adds a question to the FAQ on the difference
between arguments and parameters.

initialization. If the interpreter is shut down and reinitialized (embedded
CPython), the old module dictionary was not dec-refed during the next import of
the time extension module.

Contributed by Torsten Marek of Google.

Issue #12848: The pure Python pickle implementation now treats object lengths as unsigned 32-bit integers, like the C implementation does.
Patch by Serhiy Storchaka.

Patch by Serhiy Storchaka.

#16306: Fix multiple error messages when unknown command line parameters where passed to the interpreter.  Patch by Hieu Nguyen.

Patch by Serhiy Storchaka.

Also add tests for ordering and hashing.

Patch by Brian Brazil.

child subprocess.PIPE parent file descriptors on child error prior to
exec().

This would lead to race conditions in multithreaded programs where
another thread opened a file reusing the fd which was then closed out
from beneath it by the errant second close.