this creates some eval errors that will be fixed in the next commit

done with the following script:

```fish
\#!/usr/bin/env fish

set packagesjson (nix eval --impure --json --expr '
let
  lib = import ./lib;
in
import pkgs/servers/x11/xorg/default.nix (lib.mapAttrs (
  name: _:
  if name == "lib" then
    lib
  else if name == "config" then
    { allowAliases = false; }
  else
    name
) (__functionArgs (import pkgs/servers/x11/xorg/default.nix))) { }
' | jq)

set one (grep '^    [A-Za-z0-9_-]*$' pkgs/servers/x11/xorg/default.nix | string trim | string replace -r '$' Z | sort | string sub -e -1)
set two (grep '^  [A-Za-z0-9_-]* = [A-Za-z0-9_-]*;$' pkgs/servers/x11/xorg/default.nix | cut -d= -f1 | string trim | string replace -r '$' Z | sort | string sub -e -1)

for arg in $one $two
    set oname $arg
    set nname (echo $packagesjson | jq -r .$oname)

    if test $nname = null
        echo (set_color red)warn:(set_color normal) unknown package xorg.$oname >&2
        continue
    end

    echo $oname "->" $nname

    # replace basic xorg.$name references
    for file in (rg -F "xorg.$oname" --files-with-matches pkgs)
        # special cases
        sd -F "$oname = xorg.$oname;" "$nname = $nname;" $file

        # replace
        sd -F "xorg.$oname" "$nname" $file

        # fixup function arguments

        # prevent duplicate function args
        if grep -E " ($oname|$nname),\$" $file >/dev/null
            continue
        end

        if grep 'xorg\..' $file >/dev/null # case1: there is more so we can't just remove the function arg

            if grep ' xorg,$' $file >/dev/null
                sd ' xorg,$' " xorg,
                $nname," $file

            else if grep ' xorg ? .*,$' $file >/dev/null
                sd 'xorg( ? .*),$' "xorg\$1,
                $nname," $file

            else
                sd -F 'xorg,' "$nname,
                xorg," $file
            end

        else # case there is no more xorg..* so we can just replace the function arg
            sd 'xorg(| ? .*),.*$' "$nname," $file
        end
    end
end

nix fmt
```

this shouldn't create any rebuilds

this was done manually by grepping for `with xorg` and `with pkgs.xorg`

Remove optional builtins prefixes from prelude functions by running:

    builtins=(
      abort
      baseNameOf
      break
      derivation
      derivationStrict
      dirOf
      false
      fetchGit
      fetchMercurial
      fetchTarball
      fetchTree
      fromTOML
      import
      isNull
      map
      null
      placeholder
      removeAttrs
      scopedImport
      throw
      toString
      true
    )

    fd \
      --type file \
      . \
      pkgs \
      --exec-batch sed --in-place --regexp-extended "
        s/\<builtins\.($(
          printf '%s\n' "${builtins[@]}" |
            paste --delimiter '|' --serial -
        ))\>/\1/g
      "

    nix fmt

After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build https://github.com/infinisil/treewide-nixpkgs-reformat-script/archive/a08b3a4d199c6124ac5b36a889d9099b4383463f.tar.gz \
      --argstr baseRev b32a0943687d2a5094a6d92f25a4b6e16a76b5b7
    result/bin/apply-formatting $NIXPKGS_PATH