[PATCH 3/4] nmbug: Catch stderr in is_unmerged

[David Bremner]

"W. Trevor King" <wking at tremily.us> writes:

> +  if ($dir eq '-2|') {
> +    $dir = '-|';
> +  }
> +

I think I'd prefer an extra flag, rather than making new syntax.
The existing syntax is not pretty, but it is standard perl