From 1f2abbdd6e960399b50f35e3e34261d13b9cf893 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Sun, 11 Sep 2016 17:47:04 +0100
Subject: [PATCH] utils/hash: fix Rubocop warnings.

---
 Library/Homebrew/utils/hash.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Library/Homebrew/utils/hash.rb b/Library/Homebrew/utils/hash.rb
index 63dd02c1af..2281ce3113 100644
--- a/Library/Homebrew/utils/hash.rb
+++ b/Library/Homebrew/utils/hash.rb
@@ -1,6 +1,6 @@
 def deep_merge_hashes(hash1, hash2)
-  merger = proc do |key, v1, v2|
-    if Hash === v1 && Hash === v2
+  merger = proc do |_key, v1, v2|
+    if v1.is_a?(Hash) && v2.is_a?(Hash)
       v1.merge v2, &merger
     else
       v2