nix-shell: restore backwards-compat with old nixpkgs#6664

Merged

thufschmitt merged 2 commits intoNixOS:masterfrom

Ma27:innixshell-backwards-compat

Jul 5, 2022

Commits on Jun 13, 2022

nix-shell: restore backwards-compat with old nixpkgs
Ma27
committed

Commits on Jun 22, 2022

tests/nix-shell: more meaningful testcase
Ma27
committed