Issue #9343: Document that argparse parent parsers must be configured before their children. (Merge from 3.2.)

The options listed in the table are now links to their documentation,
and the table uses compact markup to make it easier to read and edit.
First proposed in #10998.

Issue #11673: Fix multiprocessing.[Raw]Array constructor to accept a size of type long.  Thanks Robert Kern.

checkout (but a mercurial one). Closes #11579. Closes #11421.
Patch by Senthil Kumaran.

* Show list of fields option before showing the single string alternative.
* Remove the PS2 prompts so that the examples become cut-and-pastable.

that could lead to infinite recursion (closes #10042).