From 9765ada69c34eb1c21855d145c2c6d752b8839b0 Mon Sep 17 00:00:00 2001
From: Kazuhiro NISHIYAMA <zn@mbf.nifty.com>
Date: Tue, 12 Dec 2023 08:47:18 +0900
Subject: [PATCH] Fix NoMethodError on fail

```
.../tool/lib/colorize.rb:56:in `resolve_color': undefined method `gsub' for an instance of Symbol (NoMethodError)

    color.gsub(/\b[a-z][\w ]+/) do |n|
	 ^^^^^
	from .../tool/lib/colorize.rb:47:in `decorate'
	from .../tool/lib/test/unit.rb:1012:in `block in failed'
```
---
 tool/lib/colorize.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tool/lib/colorize.rb b/tool/lib/colorize.rb
index 5c3b43f3fa..1131221586 100644
--- a/tool/lib/colorize.rb
+++ b/tool/lib/colorize.rb
@@ -53,7 +53,7 @@ class Colorize
 
   def resolve_color(color = @color, seen = {}, colors = nil)
     return unless @colors
-    color.gsub(/\b[a-z][\w ]+/) do |n|
+    color.to_s.gsub(/\b[a-z][\w ]+/) do |n|
       n.gsub!(/\W+/, "_")
       n.downcase!
       c = seen[n] and next c