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/tools/text/patchutils/generic.nix

@@ -44,11 +44,11 @@ stdenv.mkDerivation rec {
       -exec sed -i '{}' -e 's|/bin/echo|echo|g' \;
   '';
 
-  meta = with lib; {
+  meta = {
     description = "Tools to manipulate patch files";
     homepage = "http://cyberelk.net/tim/software/patchutils";
-    license = licenses.gpl2Plus;
-    platforms = platforms.all;
-    maintainers = with maintainers; [ artturin ];
+    license = lib.licenses.gpl2Plus;
+    platforms = lib.platforms.all;
+    maintainers = with lib.maintainers; [ artturin ];
   };
 }