Git initialization error

There is a strange issue during initialization of git repo. The only output in the command line is:

```
✔ Done!

Error: Exited with status 128
```

I've investigated a bit, and it appears that this line of code is cause of the issue.

```
await spawn('git', ['commit', '--author', gitUser, '-m', 'initial commit from Preact CLI'], { cwd });
```