pkgs/development/libraries: stdenv.lib -> lib

pkgs/development/libraries/qmlbox2d/default.nix

@@ -1,4 +1,4 @@
-{stdenv, qtdeclarative, fetchFromGitHub, qmake }:
+{lib, stdenv, qtdeclarative, fetchFromGitHub, qmake }:
 stdenv.mkDerivation {
   name = "qml-box2d-2018-04-06";
   src = fetchFromGitHub {
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
 
   installFlags = [ "INSTALL_ROOT=$(out)" ];
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "A QML plugin for Box2D engine";
     homepage = "https://github.com/qml-box2d/qml-box2d";
     maintainers = [ maintainers.guibou ];