add-font adds spaces to ABeeZee font name

I'm using `add-fonts` to generate new metadata for all families in google/fonts, in order to make sure we don't exclude latin-ext glyphs where they exist (see https://github.com/google/fonts/issues/187). This has led me to find a number of issues with `add-font`. I'll document them separately, so that we can hopefully correct things that are real issues, and I can be better informed if some of them aren't real issues.

---

If `add-font` is run on ABeeZee, the `METADATA.pb` file ends up with

```
name: "A Bee Zee"
```

However, in the `name` table of ABeeZee, `nameID` 1 is

```

ABeeZee

```

(without spaces)

So, we may need to add an exception for ABeeZee, unless this is really the intended behavior.