[Distutils] easy_install -f confusion

[Ian Bicking]

Jeff Hammel and myself were going over a problem with -f seemingly being 
ignored in easy_install, and it took us a while to realize that you have 
to do something like "easy_install -f 'url1 url2 ...'", and you can't do 
"easy_install -f url1 -f url2".

It's literally been years that I've been unaware of this, and confused 
by the results.  I think easy_install should give an error if you 
provide multiple -f's (or make it work if you do so).

-- 
Ian Bicking : ianb at colorstudy.com : http://blog.ianbicking.org