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/servers/identd/nullidentdmod/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, ... }: stdenv.mkDerivation rec {
+{ lib, stdenv, fetchFromGitHub, ... }: stdenv.mkDerivation rec {
   pname = "nullidentdmod";
   version = "1.3";
 
@@ -15,7 +15,7 @@
     install -Dm755 nullidentdmod $out/bin
   '';
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Simple identd that just replies with a random string or customized userid";
     license = licenses.gpl2;
     homepage = "http://acidhub.click/NullidentdMod";

pkgs/servers/identd/oidentd/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, bison, flex }:
+{ lib, stdenv, fetchurl, bison, flex }:
 
 stdenv.mkDerivation rec {
   pname = "oidentd";
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
     sha256 = "1d5mqlknfywbx2bgj7ap7x6qzvz257hhqcqhy6zk45dqpsirdn7a";
   };
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Configurable Ident protocol server";
     homepage = "https://oidentd.janikrabe.com/";
     license = licenses.gpl2;