Fix `nix develop`

[zimbatm]

For some reason, nix develop stopped working:

$ nix develop
error: --- Error --------------------------------------------------------------------------------------------------------------------------------------------------- nix
error: --- Error --- nix-daemon
builder for '/nix/store/vfc8ydhi6sacga3j677ww6djzi6cfqfh-mkDevShell-env.drv' failed to produce output path '/nix/store/28vlpzyvc8i5c22v9hws8nfwds4537sh-mkDevShell-env'

The mkDevShell-env.drv has different builder args than what is defined in the nix code:

    "builder": "/nix/store/sdvgyx4635dwbmiqwmc8zhsj92zd7456-bash-interactive-4.4-p23/bin/bash",
    "args": [
      "/nix/store/0c88xw36hn0wzmnlyai9s3sibbnq3pnd-get-env.sh"
    ],