networkmanager-l2tp: format the expression

pkgs/tools/networking/networkmanager/l2tp/default.nix

@@ -1,7 +1,22 @@
-{ lib, stdenv, substituteAll, fetchFromGitHub, autoreconfHook, libtool, intltool, pkg-config
+{ stdenv
+, lib
+, substituteAll
+, fetchFromGitHub
+, autoreconfHook
+, libtool
+, intltool
+, pkg-config
 , file
-, gtk3, networkmanager, ppp, xl2tpd, strongswan, libsecret
-, withGnome ? true, libnma, glib }:
+, gtk3
+, networkmanager
+, ppp
+, xl2tpd
+, strongswan
+, libsecret
+, withGnome ? true
+, libnma
+, glib
+}:
 
 stdenv.mkDerivation rec {
   name = "${pname}${if withGnome then "-gnome" else ""}-${version}";
@@ -22,14 +37,23 @@ stdenv.mkDerivation rec {
     })
   ];
 
-  buildInputs = [ networkmanager ppp glib ]
-    ++ lib.optionals withGnome [ gtk3 libsecret libnma ];
+  nativeBuildInputs = [
+    autoreconfHook
+    libtool
+    intltool
+    pkg-config
+    file
+  ];
 
-  nativeBuildInputs = [ autoreconfHook libtool intltool pkg-config file ];
-
-  preConfigure = ''
-    intltoolize -f
-  '';
+  buildInputs = [
+    networkmanager
+    ppp
+    glib
+  ] ++ lib.optionals withGnome [
+    gtk3
+    libsecret
+    libnma
+  ];
 
   configureFlags = [
     "--without-libnm-glib"
@@ -41,6 +65,10 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
+  preConfigure = ''
+    intltoolize -f
+  '';
+
   passthru = {
     networkManagerPlugin = "VPN/nm-l2tp-service.name";
   };