bundlerUpdateScript: init and use (#64822)

pkgs/applications/version-management/git-and-tools/git-fame/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, bundlerEnv, ruby }:
+{ stdenv, bundlerEnv, ruby, bundlerUpdateScript }:
 
 bundlerEnv rec {
   inherit ruby;
@@ -7,13 +7,15 @@ bundlerEnv rec {
 
   gemdir = ./.;
 
+  passthru.updateScript = bundlerUpdateScript "gitAndTools.git-fame";
+
   meta = with stdenv.lib; {
     description = ''
       A command-line tool that helps you summarize and pretty-print collaborators based on contributions
       '';
     homepage    = http://oleander.io/git-fame-rb;
     license     = licenses.mit;
-    maintainers = with maintainers; [ expipiplus1 ];
+    maintainers = with maintainers; [ expipiplus1 nicknovitski ];
     platforms   = platforms.unix;
   };
 }