Merge pull request #331888 from amozeo/pkgs/nixos-rebuild/fix-edit-action

# Find configuration.nix and open editor instead of building.

if [ "$action" = edit ]; then

    if [[ -n $attr || -n $buildFile ]]; then

    if [[ -z $buildingAttribute ]]; then

        log "error: '--file' and '--attr' are not supported with 'edit'"

        exit 1

    elif [[ -z $flake ]]; then