[PATCH 2/4] nmbug: Handle missing @upstream in is_unmerged

[W. Trevor King]

On Wed, Jul 16, 2014 at 07:36:10PM -0300, David Bremner wrote:
> W. Trevor King writes:
> > If we don't have an upstream, there is nothing to merge, so
> > nothing is unmerged.  This avoids errors like:
> 
> pushed this one patch.

Without the stderr-catching of something like patch 3, this means
folks without an upstream are going to see a distracting:

  error: No upstream configured for branch 'master'

if they run 'nmbug status' without an @upstream.

I'm working through the Python translation now ;).

Cheers,
Trevor

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