From 2a24fed8a7c1b29c936512b069c99694507347d0 Mon Sep 17 00:00:00 2001
From: Kaise Cheng <kaise.cheng@elastic.co>
Date: Thu, 7 Oct 2021 12:22:26 +0200
Subject: [PATCH] fix plugin installation script

---
 lib/bootstrap/bundler.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/bootstrap/bundler.rb b/lib/bootstrap/bundler.rb
index 2672c6e0e36..1e12459bbfc 100644
--- a/lib/bootstrap/bundler.rb
+++ b/lib/bootstrap/bundler.rb
@@ -17,6 +17,7 @@
 
 require "fileutils"
 require "stringio"
+require 'set'
 
 module LogStash
   module Bundler