NixOS/nixos — pull request #238 by danbst (2013-08-31 14:13:06+00:00)
Title: Remove unclear comment from hardware-configuration.nix

It is likely that hardware-configuration.nix is generated once (just like configuration.nix) and never regenerated again. Looking into `nixos-option.sh`:

```sh
hardware_config="${NIXOS_CONFIG%/configuration.nix}/hardware-configuration.nix"
if test -e "$hardware_config"; then
echo "A hardware configuration file exists, generation skipped."
else
echo "Generating a hardware configuration file in $hardware_config..."
nixos-hardware-scan > "$hardware_config"
fi
```