pkgs/os-specific: stdenv.lib -> lib

pkgs/os-specific/linux/opengl/xorg-sys/default.nix

@@ -6,7 +6,7 @@
 # Of course, use of the driver in /usr/lib is highly impure.  But it
 # might actually work ;-)
 
-{stdenv, xorg, expat, libdrm}:
+{lib, stdenv, xorg, expat, libdrm}:
 
 stdenv.mkDerivation {
   name = "xorg-sys-opengl-3";
@@ -15,6 +15,6 @@ stdenv.mkDerivation {
     [xorg.libXxf86vm xorg.libXext expat libdrm stdenv.cc.cc];
 
   meta = {
-    platforms = stdenv.lib.platforms.linux;
+    platforms = lib.platforms.linux;
   };
 }