From d47517f635001088fb1fb7bf43231b1fd5168d3b Mon Sep 17 00:00:00 2001
From: Bo Anderson <mail@boanderson.me>
Date: Fri, 20 May 2022 01:41:26 +0100
Subject: [PATCH] exceptions: handle backslash in args for BuildError

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

diff --git a/Library/Homebrew/exceptions.rb b/Library/Homebrew/exceptions.rb
index 0a5526a5f..9dbb89449 100644
--- a/Library/Homebrew/exceptions.rb
+++ b/Library/Homebrew/exceptions.rb
@@ -479,7 +479,7 @@ class BuildError < RuntimeError
     @cmd = cmd
     @args = args
     @env = env
-    pretty_args = Array(args).map { |arg| arg.to_s.gsub " ", "\\ " }.join(" ")
+    pretty_args = Array(args).map { |arg| arg.to_s.gsub(/[\\ ]/, "\\\\\\0") }.join(" ")
     super "Failed executing: #{cmd} #{pretty_args}".strip
   end