pkgs/shells: stdenv.lib -> lib

pkgs/shells/zsh/antigen/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl }:
+{ lib, stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
   version = "2.2.3";
@@ -20,6 +20,6 @@ stdenv.mkDerivation rec {
   meta = {
     description = "The plugin manager for zsh";
     homepage = "http://antigen.sharats.me";
-    license = stdenv.lib.licenses.mit;
+    license = lib.licenses.mit;
   };
 }