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/applications/display-managers/lightdm-enso-os-greeter/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchgit, pkgconfig, linkFarm, lightdm-enso-os-greeter
+{ lib, stdenv, fetchgit, pkgconfig, linkFarm, lightdm-enso-os-greeter
 , dbus, pcre, epoxy, libXdmcp, at-spi2-core, libxklavier, libxkbcommon, libpthreadstubs
 , gtk3, vala, cmake, libgee, libX11, lightdm, gdk-pixbuf, clutter-gtk, wrapGAppsHook, librsvg }:
 
@@ -55,7 +55,7 @@ stdenv.mkDerivation {
       --replace "pantheon-greeter" "$out/bin/pantheon-greeter"
   '';
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = ''
       A fork of pantheon greeter that positions elements in a central and
       vertigal manner and adds a blur effect to the background

pkgs/applications/display-managers/lightdm-mini-greeter/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, linkFarm, lightdm-mini-greeter, fetchFromGitHub, autoreconfHook, pkgconfig, lightdm, gtk3, glib, gdk-pixbuf, wrapGAppsHook, librsvg }:
+{ lib, stdenv, linkFarm, lightdm-mini-greeter, fetchFromGitHub, autoreconfHook, pkgconfig, lightdm, gtk3, glib, gdk-pixbuf, wrapGAppsHook, librsvg }:
 
 stdenv.mkDerivation rec {
   pname = "lightdm-mini-greeter";
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
     name = "lightdm-mini-greeter.desktop";
   }];
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "A minimal, configurable, single-user GTK3 LightDM greeter";
     homepage = "https://github.com/prikhi/lightdm-mini-greeter";
     license = licenses.gpl3;

pkgs/applications/display-managers/lightdm-tiny-greeter/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, linkFarm, lightdm-tiny-greeter, fetchFromGitHub
+{ lib, stdenv, linkFarm, lightdm-tiny-greeter, fetchFromGitHub
 , pkgconfig, lightdm, gtk3, glib, wrapGAppsHook, conf ? "" }:
 
 stdenv.mkDerivation rec {
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
     name = "lightdm-tiny-greeter.desktop";
   }];
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "A tiny multi user lightdm greeter";
     homepage = "https://github.com/off-world/lightdm-tiny-greeter";
     license = licenses.bsd3;

pkgs/applications/display-managers/lightdm/gtk-greeter.nix

@@ -1,4 +1,4 @@
-{ stdenv
+{ lib, stdenv
 , lightdm_gtk_greeter
 , fetchurl
 , lightdm
@@ -63,7 +63,7 @@ stdenv.mkDerivation rec {
     name = "lightdm-gtk-greeter.desktop";
   }];
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = "https://launchpad.net/lightdm-gtk-greeter";
     platforms = platforms.linux;
     license = licenses.gpl3;