- Fixed indentation for a verbatim block

but not entirely obvious use case.

Also, add a testcase.

Formerly, the list_extend() code used several local variables to remember
its state across iterations.  Since an iteration could call arbitrary
Python code, it was possible for the list state to be changed.  The new
code uses dynamic structure references instead of C locals.  So, they
are always up-to-date.

After list_resize() is called, its size has been updated but the new
cells are filled with NULLs.  These needed to be filled before arbitrary
iteration code was called; otherwise, that code could attempt to modify
a list that was in a semi-invalid state.  The solution was to change
the ob->size field back to a value reflecting the actual number of valid
cells.

by factoring out the common prefix (the delimiter).

Backported to 2.3.

the process of writing docs for the other "missing" debug support
functions.

on option flags; added a versionadded decoration.

"soon", after I repair the LaTeX I somehow damaged.

unittest support function, from the public interface.  If they're not
documented, they shouldn't be public.

example.  Squash repeated argument descriptions.  Minor rewordings.

and the LaTeX docs are in increasingly good shape.

squashed massive duplication of common argument descriptions.

get rid of the itemize structure.

ELLIPSIS can be used to deal with examples that embed object addresses.

part of my previous last changes.

reStructuredText format.  Remove words describing the return value of
testmod() and testfile() in the intro sections, since it's never
useful in such simple cases.

- Add more ulink's to modules (this should probably become a standard macro).

buffers, compute the new buffer size based on the old buffer size.
Fixes SF bug #1034242.