Comment 8 for bug 776555

This code has been like this pretty much forever (2005 the text param. was added), I can see how you might be confused if you just looked at the documentation though. Alas. we can't just remove the param name from the call, as the API has other params:

    def start(self, filename=None, url=None, basename=None,
              size=None, now=None, text=None):

...so our only sane option is to treat it as a documentation bug, and fix that. Sorry, if that doesn't help you much.