Update for nmbug, round 2

[David Bremner]

Tomi Ollila <tomi.ollila at iki.fi> writes:

>
> David: are you going to send followup patches soon? I'm running nmbug
> with these patches and it works fine.
>

I have two followup patches that add an "nmbug init" command to create
an empty nmbug repo, but this is only really needed/useful for using
nmbug to track other kinds of tags, and I'm not sure yet if this is the
right direction to go. So maybe I'll just push these patches as is.

d