Issue2300

For example:
easy_install --help
shows help for jython instead of easy_install help

This is confined to --boot, --help, --jdb, --print, --profile, so basically the special options that are handled in the launcher.

The likely fix is to specialize on the first argument. We need to do so in a robust fashion of course.

I don't believe this has worked in the past either with the old launcher mechanisms, jython.py is a simple and more robust port, especially when compared to jython.bat.

I looked into this some more, and it looks more resolvable than I feared. So after decoding args to Unicode (because we need to), we get the following sys.argv on OS X 10.10, with a little instrumentation:

$ dist/bin/yolk --print
[u'/Users/jbaker/jythondev/jython27/dist/bin/jython', u'dist/bin/yolk', u'--print']

Should be the same on Windows. So this means it's not a question of sys.argv[0] - that would be hard to get right - but instead doing a standard delegation of option args to sys.argv[1]

So we should be able to fix for RC2

Fixed as of https://hg.python.org/jython/rev/2a4d36522fa6