[PATCH] nmbug: Only error for invalid diff lines in tags/

[David Bremner]

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

> With this commit, folks can commit READMEs, .mailmap, etc. to their
> nmbug repositories, and 'nmbug diff' and 'status' won't choke on them.
> If you want to check for this sort of thing, you can set --log-level
> to info or greater.  nmbug will still error if the unrecognized path
> is under tags/, since that's more likely to be a user error.

pushed.

d