treewide: stdenv.lib -> lib

pkgs/applications/window-managers/dzen2/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, libX11, libXft, libXinerama, libXpm }:
+{ lib, stdenv, fetchurl, pkgconfig, libX11, libXft, libXinerama, libXpm }:
 
 stdenv.mkDerivation {
   name = "dzen2-0.9.5";
@@ -30,8 +30,8 @@ stdenv.mkDerivation {
 
   meta = {
     homepage = "https://github.com/robm/dzen";
-    license = stdenv.lib.licenses.mit;
+    license = lib.licenses.mit;
     description = "X notification utility";
-    platforms = stdenv.lib.platforms.linux;
+    platforms = lib.platforms.linux;
   };
 }