treewide: Format all Nix files

Format all Nix files using the officially approved formatter,
making the CI check introduced in the previous commit succeed:

  nix-build ci -A fmt.check

This is the next step of the of the [implementation](https://github.com/NixOS/nixfmt/issues/153)
of the accepted [RFC 166](https://github.com/NixOS/rfcs/pull/166).

This commit will lead to merge conflicts for a number of PRs,
up to an estimated ~1100 (~33%) among the PRs with activity in the past 2
months, but that should be lower than what it would be without the previous
[partial treewide format](https://github.com/NixOS/nixpkgs/pull/322537).

Merge conflicts caused by this commit can now automatically be resolved while rebasing using the
[auto-rebase script](https://github.com/NixOS/nixpkgs/tree/8616af08d915377bd930395f3b700a0e93d08728/maintainers/scripts/auto-rebase).

If you run into any problems regarding any of this, please reach out to the
[formatting team](https://nixos.org/community/teams/formatting/) by
pinging @NixOS/nix-formatting.

pkgs/development/interpreters/python/cpython/docs/2.7-html.nix

@@ -1,6 +1,10 @@
 # This file was generated and will be overwritten by ./generate.sh
 
-{ stdenv, lib, fetchurl }:
+{
+  stdenv,
+  lib,
+  fetchurl,
+}:
 
 stdenv.mkDerivation {
   pname = "python27-docs-html";

pkgs/development/interpreters/python/cpython/docs/2.7-pdf-a4.nix

@@ -1,6 +1,10 @@
 # This file was generated and will be overwritten by ./generate.sh
 
-{ stdenv, lib, fetchurl }:
+{
+  stdenv,
+  lib,
+  fetchurl,
+}:
 
 stdenv.mkDerivation {
   pname = "python27-docs-pdf-a4";

pkgs/development/interpreters/python/cpython/docs/2.7-pdf-letter.nix

@@ -1,6 +1,10 @@
 # This file was generated and will be overwritten by ./generate.sh
 
-{ stdenv, lib, fetchurl }:
+{
+  stdenv,
+  lib,
+  fetchurl,
+}:
 
 stdenv.mkDerivation {
   pname = "python27-docs-pdf-letter";

pkgs/development/interpreters/python/cpython/docs/2.7-text.nix

@@ -1,6 +1,10 @@
 # This file was generated and will be overwritten by ./generate.sh
 
-{ stdenv, lib, fetchurl }:
+{
+  stdenv,
+  lib,
+  fetchurl,
+}:
 
 stdenv.mkDerivation {
   pname = "python27-docs-text";

pkgs/development/interpreters/python/cpython/docs/3.10-html.nix

@@ -1,6 +1,10 @@
 # This file was generated and will be overwritten by ./generate.sh
 
-{ stdenv, lib, fetchurl }:
+{
+  stdenv,
+  lib,
+  fetchurl,
+}:
 
 stdenv.mkDerivation {
   pname = "python310-docs-html";

pkgs/development/interpreters/python/cpython/docs/3.10-pdf-a4.nix

@@ -1,6 +1,10 @@
 # This file was generated and will be overwritten by ./generate.sh
 
-{ stdenv, lib, fetchurl }:
+{
+  stdenv,
+  lib,
+  fetchurl,
+}:
 
 stdenv.mkDerivation {
   pname = "python310-docs-pdf-a4";

pkgs/development/interpreters/python/cpython/docs/3.10-pdf-letter.nix

@@ -1,6 +1,10 @@
 # This file was generated and will be overwritten by ./generate.sh
 
-{ stdenv, lib, fetchurl }:
+{
+  stdenv,
+  lib,
+  fetchurl,
+}:
 
 stdenv.mkDerivation {
   pname = "python310-docs-pdf-letter";

pkgs/development/interpreters/python/cpython/docs/3.10-text.nix

@@ -1,6 +1,10 @@
 # This file was generated and will be overwritten by ./generate.sh
 
-{ stdenv, lib, fetchurl }:
+{
+  stdenv,
+  lib,
+  fetchurl,
+}:
 
 stdenv.mkDerivation {
   pname = "python310-docs-text";

pkgs/development/interpreters/python/cpython/docs/default.nix

@@ -1,47 +1,53 @@
-{ stdenv, fetchurl, lib }:
+{
+  stdenv,
+  fetchurl,
+  lib,
+}:
 
 let
-pythonDocs = {
-  html = {
-    recurseForDerivations = true;
-    python27 = import ./2.7-html.nix {
-      inherit stdenv fetchurl lib;
+  pythonDocs = {
+    html = {
+      recurseForDerivations = true;
+      python27 = import ./2.7-html.nix {
+        inherit stdenv fetchurl lib;
+      };
+      python310 = import ./3.10-html.nix {
+        inherit stdenv fetchurl lib;
+      };
     };
-    python310 = import ./3.10-html.nix {
-      inherit stdenv fetchurl lib;
+    pdf_a4 = {
+      recurseForDerivations = true;
+      python27 = import ./2.7-pdf-a4.nix {
+        inherit stdenv fetchurl lib;
+      };
+      python310 = import ./3.10-pdf-a4.nix {
+        inherit stdenv fetchurl lib;
+      };
+    };
+    pdf_letter = {
+      recurseForDerivations = true;
+      python27 = import ./2.7-pdf-letter.nix {
+        inherit stdenv fetchurl lib;
+      };
+      python310 = import ./3.10-pdf-letter.nix {
+        inherit stdenv fetchurl lib;
+      };
+    };
+    text = {
+      recurseForDerivations = true;
+      python27 = import ./2.7-text.nix {
+        inherit stdenv fetchurl lib;
+      };
+      python310 = import ./3.10-text.nix {
+        inherit stdenv fetchurl lib;
+      };
+    };
+    texinfo = {
+      recurseForDerivations = true;
+      python310 = import ./3.10-texinfo.nix {
+        inherit stdenv fetchurl lib;
+      };
     };
   };
-  pdf_a4 = {
-    recurseForDerivations = true;
-    python27 = import ./2.7-pdf-a4.nix {
-      inherit stdenv fetchurl lib;
-    };
-    python310 = import ./3.10-pdf-a4.nix {
-      inherit stdenv fetchurl lib;
-    };
-  };
-  pdf_letter = {
-    recurseForDerivations = true;
-    python27 = import ./2.7-pdf-letter.nix {
-      inherit stdenv fetchurl lib;
-    };
-    python310 = import ./3.10-pdf-letter.nix {
-      inherit stdenv fetchurl lib;
-    };
-  };
-  text = {
-    recurseForDerivations = true;
-    python27 = import ./2.7-text.nix {
-      inherit stdenv fetchurl lib;
-    };
-    python310 = import ./3.10-text.nix {
-      inherit stdenv fetchurl lib;
-    };
-  };
-  texinfo = {
-    recurseForDerivations = true;
-    python310 = import ./3.10-texinfo.nix {
-      inherit stdenv fetchurl lib;
-    };
-  };
-}; in pythonDocs
+in
+pythonDocs