Comment 3 for bug 437295

I've pushed a branch containing a proposed fix for this:
https://code.launchpad.net/~gagern/bzr-cvsps-import/lp437295

The fix was written with Linux in mind, and I don't know whether it would work as well on platforms using unicode file names, like Windows or OS X. But as I believe that non-ascii filename support restricted to Linux is preferable to no such support at all, I'd like to see these changes merged in any case, unless you have serious objections.