treewide: clean up 'meta = with' pattern

This commit was created by a combination of scripts and tools:
- an ast-grep script to prefix things in meta with `lib.`,
- a modified nixf-diagnose / nixf combination to remove unused `with
lib;`, and
- regular nixfmt.

Co-authored-by: Wolfgang Walther <walther@technowledgy.de>

pkgs/development/ocaml-modules/fix/default.nix

@@ -18,10 +18,10 @@ buildDunePackage rec {
 
   minimalOCamlVersion = "4.03";
 
-  meta = with lib; {
+  meta = {
     homepage = "https://gitlab.inria.fr/fpottier/fix/";
     description = "Simple OCaml module for computing the least solution of a system of monotone equations";
-    license = licenses.lgpl2Only;
-    maintainers = with maintainers; [ vbgl ];
+    license = lib.licenses.lgpl2Only;
+    maintainers = with lib.maintainers; [ vbgl ];
   };
 }