From 7692098cd105ade885394e3bfd59fac168f892d4 Mon Sep 17 00:00:00 2001
From: Mohammad Zain Abbas <mohammadzainabbas@gmail.com>
Date: Thu, 30 Jun 2022 17:01:11 +0200
Subject: [PATCH] Minor fix: don't initialise livecheck unless needed

---
 Library/Homebrew/resource.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/resource.rb b/Library/Homebrew/resource.rb
index 6ee5a77214..1170f2b4b3 100644
--- a/Library/Homebrew/resource.rb
+++ b/Library/Homebrew/resource.rb
@@ -183,7 +183,7 @@ class Resource
   #   regex /foo-(\d+(?:\.\d+)+)\.tar/
   # end</pre>
   def livecheck(&block)
-    @livecheck ||= Livecheck.new(self)
+    @livecheck ||= Livecheck.new(self) if block
     return @livecheck unless block
 
     @livecheckable = true