git: SSHD - Change default security

[justin at shiningsilence.com]

>     * Do not allow any login, root or otherwise, via tunneled plaintext
> password (previously: non-root logins were allowed via plaintext password).

This means that people won't be able to ssh into a new DragonFly system
until keys for any given account have been created, correct?

Would it be worth changing the new user creation process to autocreate
keys too?  I'm trying to think of ways to reduce the (admittedly already
small) administrative overhead from this.