Can git send-email support neomutt?

Excuse me.

I want to use neomutt as git send-email's cmd:

```
[sendemail]
	sendmailCmd = neomutt
```

However, I notice

``` my @sendmail_parameters = ('-i', @recipients); ... exec ("sh", "-c", "$sendmail_cmd \"\$@\"", "-", @sendmail_parameters) ```

It call `neomutt -i to@email from@email`, which is an incorrect cmd for neomutt.

Can we customize sendmail-cmd more flexible? Like

```
[sendemail]
	sendmailCmd = neomutt %{to}
```

call `neomutt to@email.com`.

Thanks!