RFC: remove traceback from "newer branch format than your bzr"

[Alexander Belchenko]

Martin Pool пишет:
> 2009/8/12 Martin Pool <martinpool at gmail.com>:
>>> apport works on Windows?
>> It's pure Python. It should work there, or at least not be too hard to fix.
> 
> I looked through it a bit.  There is some Linux-specific code, but
> it's segregated and seems to make an effort not to rely on anything OS
> specific.  I'm confident the apport authors would take patches to make
> it work on Windows - and there are some test suites.

On screenshots I see the GTK-based GUI dialogs. IIUC this should be 
ported to use PyQt4 and don't rely on QBzr at all, i.e. completely separate.