Change-Id: I7c30690e5763d095cf7444333f7b687509051c5f
I7c30690e5763d095cf7444333f7b687509051c5f
This is only rudimentary support as allowed by `NIX_GET_COMPLETIONS`. In the future, we could use complete’s `--wraps` argument to autocomplete arguments for programs after `nix shell -c`.