Format nix files using 'nixfmt'

modules/networking.nix

@@ -2,7 +2,11 @@
 
 {
   networking.hostName = "nixos";
-  networking.wireless = { iwd = { enable = true; }; };
+  networking.wireless = {
+    iwd = {
+      enable = true;
+    };
+  };
   networking.firewall = {
     enable = true;
     allowedTCPPorts = [ 22 ];

modules/printing.nix

@@ -1,5 +1,5 @@
 { ... }:
 
-{ 
+{
   services.printing.enable = true;
 }

modules/x.nix

@@ -2,10 +2,10 @@
 
 {
   services.xserver.windowManager.xmonad = {
-   enable = true;
-   enableContribAndExtras = true;
-   config = builtins.readFile ../dots/.xmonad/xmonad.hs;
- };
+    enable = true;
+    enableContribAndExtras = true;
+    config = builtins.readFile ../dots/.xmonad/xmonad.hs;
+  };
 
   services.xserver = {
     enable = true;