small bug in "bzr branch"

[John Arbash Meinel]

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I just saw this in cmd_branch:

        try:
            br_from = Branch.open(from_location)
        except OSError, e:
            if e.errno == errno.ENOENT:
                raise errors.BzrCommandError('Source location "%s" does not'
                                             ' exist.' % to_location)
            else:
                raise

I'm pretty sure that should be:

% from_location)


But actually it doesn't matter, because the try/except OSError is bogus.
We actually raise NotBranchError as part of Branch.open, so really it
should all just be removed.

Thoughts?

John
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