Patch by Mark Roseman.

This was triggering intermittent failures in unrelated tests.

internals regarding how fds_to_pass were passed to the child.  The bug
had no actual impact as subprocess.py already avoided it.

not allow the send_signal(), terminate(), or kill() methods to do
anything as they could potentially signal a different process.

not allow the send_signal(), terminate(), or kill() methods to do
anything as they could potentially signal a different process.

with a null byte.

with a null byte.

Mainly missing grammatical articles (the, a).

Previously it was called another time via hasattr(), and both calls were
made once for dir(f) and again for dir(f.__class__).  This includes a
backport of changing from a list to a set from revision 4dbb315fe667.

This was a regression caused by revision 1da9630e9b7f.  Based on patch by
Eryksun.

operations in C implementation of OrderedDict.

address the compatibility problem introduced by the addition of IDLE Dark.
Consistently use the revised idleConf.CurrentTheme everywhere in idlelib.

parse command line arguments.

parse command line arguments.