How to not insert email into Cargo.toml by default when doing `cargo init`?

[Boscop]

There should be an option for that.
When I do

[cargo-new]
email = ""

it writes authors = ["NAME <>"] but it shouldn't append the " <>".

[alexcrichton]

You can see the various methods Cargo uses, and if they're all unset the email shouldn't show up. We could also add a feature where empty emails don't have <> characters.

[Boscop]

I have a git email configured but I don't want it to be inserted into Cargo.toml, that's why I want to be able to override it with that [cargo-new] setting.
(Btw, none of those 4 env vars is set for me (Win 8.1). Only the global git config email is set.)