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/tools/text/gawk/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl
+{ lib, stdenv, fetchurl
 # TODO: links -lsigsegv but loses the reference for some reason
 , withSigsegv ? (false && stdenv.hostPlatform.system != "x86_64-cygwin"), libsigsegv
 , interactive ? false, readline
@@ -56,7 +56,7 @@ stdenv.mkDerivation rec {
     libsigsegv = if withSigsegv then libsigsegv else null; # for stdenv bootstrap
   };
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = "https://www.gnu.org/software/gawk/";
     description = "GNU implementation of the Awk programming language";
 
@@ -81,4 +81,3 @@ stdenv.mkDerivation rec {
     maintainers = [ ];
   };
 }
-

pkgs/tools/text/gawk/gawkextlib.nix

@@ -1,4 +1,4 @@
-{ stdenv, recurseIntoAttrs, fetchgit, writeText, pkgconfig, autoreconfHook
+{ lib, stdenv, recurseIntoAttrs, fetchgit, writeText, pkgconfig, autoreconfHook
 , autoconf, automake, libiconv, libtool, texinfo, gettext, gawk, rapidjson, gd
 , shapelib, libharu, lmdb, gmp, glibcLocales, mpfr, more, postgresql, hiredis
 , expat, tre, makeWrapper }:
@@ -40,7 +40,7 @@ let
         inherit doCheck;
         checkInputs = [ more ];
 
-        meta = with stdenv.lib; {
+        meta = with lib; {
           homepage = "https://sourceforge.net/projects/gawkextlib/";
           description = "Dynamically loaded extension libraries for GNU AWK";
           longDescription = ''