pkgs/tools: stdenv.lib -> lib

pkgs/tools/security/pinentry/mac.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, xcbuildHook, libiconv, ncurses, Cocoa }:
+{ lib, stdenv, fetchFromGitHub, xcbuildHook, libiconv, ncurses, Cocoa }:
 
 stdenv.mkDerivation {
   name = "pinentry-mac-0.9.4";
@@ -24,8 +24,8 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Pinentry for GPG on Mac";
-    license = stdenv.lib.licenses.gpl2Plus;
+    license = lib.licenses.gpl2Plus;
     homepage = "https://github.com/GPGTools/pinentry-mac";
-    platforms = stdenv.lib.platforms.darwin;
+    platforms = lib.platforms.darwin;
   };
 }