Changed stack layout bit for "easy to explain."

Thanks to Evan_ for the report and patch.

* Indent versionchanged at method level, not class level
* Mark up ``--help`` to avoid generating an en dash
* Use forward slash in Unix command line with a dollar sign ($) prompt

tarfile.TarFile.add().

ctypes.CDLL instances.

ctypes.CDLL instances.

ctypes.CDLL instances.

is now positional-only.

in methods of regular expression objects.

Thanks Greg Bengeult for the patch.