node v7.1 reports deprecation warning

[metalim]

Running CoffeeScript command-line REPL with latest node (7.1.0) reports following on each command execution:

└> coffee
coffee> (node:29643) DeprecationWarning: Calling an asynchronous function without callback is deprecated.

[GeoffreyBooth]

Fixed in #4340, will go out with the next release. You can preview it now by cloning this repo and running bin/coffee.