treewide: with stdenv.lib; in meta -> with lib;

Part of: https://github.com/NixOS/nixpkgs/issues/108938

meta = with stdenv.lib;

is a widely used pattern. We want to slowly remove
the `stdenv.lib` indirection and encourage people
to use `lib` directly. Thus let’s start with the meta
field.

This used a rewriting script to mostly automatically
replace all occurances of this pattern, and add the
`lib` argument to the package header if it doesn’t
exist yet.

The script in its current form is available at
https://cs.tvl.fyi/depot@2f807d7f141068d2d60676a89213eaa5353ca6e0/-/blob/users/Profpatsch/nixpkgs-rewriter/default.nix

pkgs/misc/emulators/retroarch/cores.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchgit, fetchFromGitHub, fetchFromGitLab, fetchpatch, cmake, pkgconfig, makeWrapper, python27, python37, retroarch
+{ lib, stdenv, fetchgit, fetchFromGitHub, fetchFromGitLab, fetchpatch, cmake, pkgconfig, makeWrapper, python27, python37, retroarch
 , alsaLib, fluidsynth, curl, hidapi, libGLU, gettext, glib, gtk2, portaudio, SDL, SDL_net, SDL2, SDL2_image, libGL
 , ffmpeg_3, pcre, libevdev, libpng, libjpeg, libzip, udev, libvorbis, snappy, which, hexdump
 , miniupnpc, sfml, xorg, zlib, nasm, libpcap, boost, icu, openssl
@@ -46,7 +46,7 @@ let
       libretroCore = "/lib/retroarch/cores";
     };
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       inherit (a) description license;
       broken = a.broken or false;
       homepage = "https://www.libretro.com/";