From c04631320c8cb8a69e50262b285e2063f104a7a9 Mon Sep 17 00:00:00 2001
From: Steve Peters <scpeters@openrobotics.org>
Date: Fri, 18 Sep 2020 00:58:53 -0700
Subject: [PATCH] upgrade: deduplicate list of outdated dependents

Use `uniq` on the list of outdated dependents to remove
duplicates, similar to a change made in #8500.
---
 Library/Homebrew/upgrade.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Library/Homebrew/upgrade.rb b/Library/Homebrew/upgrade.rb
index a64cabf5ac..b0d3c0f993 100644
--- a/Library/Homebrew/upgrade.rb
+++ b/Library/Homebrew/upgrade.rb
@@ -142,6 +142,7 @@ module Homebrew
 
       outdated_dependents =
         installed_formulae.flat_map(&:runtime_installed_formula_dependents)
+                          .uniq
                           .select(&:outdated?)
       return if outdated_dependents.blank? && already_broken_dependents.blank?
 
-- 
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