Fabian Homborg 0aedd47af2 [completions/env] Argparsify
This fixes subcommand completions by using argparse to get the
subcommand, just like we did for `sudo`.

Reported by @adregan on gitter
2018-10-02 19:31:30 +02:00
..
2018-10-02 19:31:30 +02:00