497108b456
"batch" is a shell script so invoking it via setuid wrapper never worked anyway. (The kernel drops perms on executables with shebang.) A previous nixpkgs commit made "batch" invoke the NixOS setuid "at" wrapper to gain needed privileges. Thanks to @yesbox for noticing.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.