From 130f74381c9b07ae51dc8e0657909b11fadf6ec0 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Sat, 3 Jul 2021 04:35:29 +0200
Subject: util.format: Escape ASCII control characters also in extra arguments

---
 util/format.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'util')

diff --git a/util/format.lua b/util/format.lua
index 2a29c4f3..43097e6a 100644
--- a/util/format.lua
+++ b/util/format.lua
@@ -79,7 +79,7 @@ local function format(formatstring, ...)
 		if arg == nil then
 			args[i] = "(nil)";
 		else
-			args[i] = tostring(arg);
+			args[i] = tostring(arg):gsub("[%z\1-\8\11-\31\127]", control_symbols):gsub("\n\t?", "\n\t");
 		end
 		formatstring = formatstring .. " [%s]"
 	end
-- 
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