Currently, `./setup.py --help-commands` displays extra commands in a random (dict iteration, probably?) order, as can be seen with the following minimal example:

    from distutils.command.build_py import build_py
    from distutils.core import setup

    class foo(build_py): pass
    class bar(build_py): pass

    setup(cmdclass={"foo": foo, "bar": bar})

(`./setup.py --help-commands` will sometimes display `foo` before `bar`, sometimes `bar` before `foo`.)

For consistency, and especially because setuptools adds a lot of extra commands, it would be nice if the help listing these extra commands was sorted instead.

Please look if these simple patches are acceptable. I don't know if standard commands are already in a sane order or if it also need to be sorted.

This is probably better now that dicts retain insertion order.
If people still think sorting would be better, please forward the feature request to setuptools.