treewide: format all inactive Nix files

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 a08b3a4d19.tar.gz \
      --argstr baseRev b32a094368
    result/bin/apply-formatting $NIXPKGS_PATH

nixos/tests/systemd-initrd-vlan.nix

@@ -1,59 +1,66 @@
-import ./make-test-python.nix ({ lib, ... }: {
-  name = "systemd-initrd-vlan";
-  meta.maintainers = [ lib.maintainers.majiir ];
+import ./make-test-python.nix (
+  { lib, ... }:
+  {
+    name = "systemd-initrd-vlan";
+    meta.maintainers = [ lib.maintainers.majiir ];
 
-  # Tests VLAN interface configuration in systemd-initrd.
-  #
-  # Two nodes are configured for a tagged VLAN. (Note that they also still have
-  # their ordinary eth0 and eth1 interfaces, which are not VLAN-tagged.)
-  #
-  # The 'server' node waits forever in initrd (stage 1) with networking
-  # enabled. The 'client' node pings it to test network connectivity.
+    # Tests VLAN interface configuration in systemd-initrd.
+    #
+    # Two nodes are configured for a tagged VLAN. (Note that they also still have
+    # their ordinary eth0 and eth1 interfaces, which are not VLAN-tagged.)
+    #
+    # The 'server' node waits forever in initrd (stage 1) with networking
+    # enabled. The 'client' node pings it to test network connectivity.
 
-  nodes = let
-    network = id: {
-      networking = {
-        vlans."eth1.10" = {
-          id = 10;
-          interface = "eth1";
+    nodes =
+      let
+        network = id: {
+          networking = {
+            vlans."eth1.10" = {
+              id = 10;
+              interface = "eth1";
+            };
+            interfaces."eth1.10" = {
+              ipv4.addresses = [
+                {
+                  address = "192.168.10.${id}";
+                  prefixLength = 24;
+                }
+              ];
+            };
+          };
         };
-        interfaces."eth1.10" = {
-          ipv4.addresses = [{
-            address = "192.168.10.${id}";
-            prefixLength = 24;
-          }];
+      in
+      {
+        # Node that will use initrd networking.
+        server = network "1" // {
+          boot.initrd.systemd.enable = true;
+          boot.initrd.network.enable = true;
+          boot.initrd.systemd.services.boot-blocker = {
+            before = [ "initrd.target" ];
+            wantedBy = [ "initrd.target" ];
+            script = "sleep infinity";
+            serviceConfig.Type = "oneshot";
+          };
         };
+
+        # Node that will ping the server.
+        client = network "2";
       };
-    };
-  in {
-    # Node that will use initrd networking.
-    server = network "1" // {
-      boot.initrd.systemd.enable = true;
-      boot.initrd.network.enable = true;
-      boot.initrd.systemd.services.boot-blocker = {
-        before = [ "initrd.target" ];
-        wantedBy = [ "initrd.target" ];
-        script = "sleep infinity";
-        serviceConfig.Type = "oneshot";
-      };
-    };
 
-    # Node that will ping the server.
-    client = network "2";
-  };
+    testScript = ''
+      start_all()
+      client.wait_for_unit("network.target")
 
-  testScript = ''
-    start_all()
-    client.wait_for_unit("network.target")
+      # Wait for the regular (untagged) interface to be up.
+      def server_is_up(_) -> bool:
+          status, _ = client.execute("ping -n -c 1 server >&2")
+          return status == 0
+      with client.nested("waiting for server to come up"):
+          retry(server_is_up)
 
-    # Wait for the regular (untagged) interface to be up.
-    def server_is_up(_) -> bool:
-        status, _ = client.execute("ping -n -c 1 server >&2")
-        return status == 0
-    with client.nested("waiting for server to come up"):
-        retry(server_is_up)
-
-    # Try to ping the (tagged) VLAN interface.
-    client.succeed("ping -n -w 10 -c 1 192.168.10.1 >&2")
-  '';
-})
+      # Try to ping the (tagged) VLAN interface.
+      client.succeed("ping -n -w 10 -c 1 192.168.10.1 >&2")
+    '';
+  }
+)