Issue #120: Use Input helper function to get the environment
Issue #120: Use Input helper function to get the environment

I couldn't figure out how to make `Input::env()` be optional.

It's quite possible that I'm just a putz.

Signed-off-by: Elliot Voris <dee6300e151043f915cc24dbc1409935bc4ae592@voris.me>

Blueprint-Marketing/cli,Blueprint-Marketing/cli,devekko/cli,labboy0276/cli,dustinleblanc/terminus,hugovk/cli,rvtraveller/terminus,reynoldsalec/cli,pantheon-systems/cli,reynoldsalec/cli,mkudenko/cli,devekko/cli,rvtraveller/terminus,hugovk/cli,pantheon-systems/cli,mkudenko/cli,pantheon-systems/cli,Blueprint-Marketing/cli,labboy0276/cli,dustinleblanc/terminus,reynoldsalec/cli,rvtraveller/terminus,labboy0276/cli,hugovk/cli,mkudenko/cli,devekko/cli,dustinleblanc/terminus