This is part of SF patch #440292.

Documentation for difflib/ndiff refactoring: more of the ndiff functionality
has been moved to the underlying library (difflib).

This closes SF patch #445413.

Update greeting message to avoid the long copyright notice.

error.

remembers what it is supposed to do. :-(

Remove unused variable and import

confident that the old code was utterly broken -- the worse that can
happen is that the new code is still broken.)

(This command seems to be essentially untested; should fix that...)

Edit comment

  Cater to that.
+ Major speed boost via not reading more of files than necessary.  This
  was no slouch before; now it screams.
+ Improve msg when giving up on a goofy future statement.

David Goodger.

Otherwise printlist(surprise) will fail with a TypeError, because map
is called with an argument that doesn't support iteration.

The descr changes moved the dispatch for calling objects from
call_object() in ceval.c to PyObject_Call() in abstract.c.
call_object() and the many functions it used in ceval.c were no longer
used, but were not removed.

Rename meth_call() as PyCFunction_Call() so that it can be called by
the CALL_FUNCTION opcode in ceval.c.

Also, fix error message that referred to PyEval_EvalCodeEx() by its
old name eval_code2().  (I'll probably refer to it by its old name,
too.)