Add a way to filter trusted Certificate Authorities

[ghost]

Issue description

There are ways to add to CAs, but not to remove any from the default generated cacert.

Steps to reproduce

see:
https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/security/ca.nix
https://github.com/NixOS/nixpkgs/blob/master/pkgs/data/misc/cacert/default.nix

Technical details

• System: 16.09pre90208.f19c961 (Flounder)
• Nix version: nix-env (Nix) 1.11.3
• Nixpkgs version: 16.09pre90208.f19c961

[wkral]

Seems like this has been addressed in: 0d59fc1 this issue can probably be closed.

[stale]

I marked this as stale due to inactivity. → More info

[abathur]

Closing per comment above that this is likely addressed.