From 04203953ded802da4e761c9e8d38d3dbd2c11d0d Mon Sep 17 00:00:00 2001
From: Sam Ford <1584702+samford@users.noreply.github.com>
Date: Wed, 22 Jun 2022 09:47:59 -0400
Subject: [PATCH] Cask: Ensure #discontinued? returns a boolean

The `Cask::DSL#discontinued?` method is expected to return a boolean
value (`true`/`false`) but it will return `nil` for any casks without
a `caveats` block. `nil` is still falsy but this commit ensures that
the method will properly return a boolean value in this scenario.
---
 Library/Homebrew/cask/dsl.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/cask/dsl.rb b/Library/Homebrew/cask/dsl.rb
index d7648987a0..e56bfc9a18 100644
--- a/Library/Homebrew/cask/dsl.rb
+++ b/Library/Homebrew/cask/dsl.rb
@@ -281,7 +281,7 @@ module Cask
     end
 
     def discontinued?
-      @caveats&.discontinued?
+      @caveats&.discontinued? == true
     end
 
     # @api public