setup.exe option parsing no longer in flux

[Christopher Faylor]

On Fri, Jul 03, 2009 at 12:54:39PM -0400, Christopher Faylor wrote:
>Please let me know (via cygwin-apps of course) if there are problems
>with this code.  It's a pretty big rewrite so I could have easily
>gotten something wrong.

I just found a problem with the new code.  It didn't save a new setting
for the last mirror used for some reason.  Will investigate later today.

cgf