emacsPackages.font-lock-plus: adopted by AndersonTorres

Also, implement passthru.updateScript.

pkgs/applications/editors/emacs/elisp-packages/manual-packages/font-lock-plus/default.nix

@@ -2,6 +2,7 @@
   lib,
   fetchFromGitHub,
   melpaBuild,
+  unstableGitUpdater,
 }:
 
 melpaBuild {
@@ -16,9 +17,12 @@ melpaBuild {
     hash = "sha256-lFmdVMXIIXZ9ZohAJw5rhxpTv017qIyzmpuKOWDdeJ4=";
   };
 
+  passthru.updateScript = unstableGitUpdater { };
+
   meta = {
     homepage = "https://github.com/emacsmirror/font-lock-plus";
     description = "Enhancements to standard library font-lock.el";
     license = lib.licenses.gpl2Plus;
+    maintainers = with lib.maintainers; [ AndersonTorres ];
   };
 }