From 11504318b85ca63c1e661987aae9ed92088533eb Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Tue, 20 Sep 2022 18:27:18 +0900
Subject: [PATCH] string-ext/string.rb: String#prepend to take multiple
 arguments.

---
 mrbgems/mruby-string-ext/mrblib/string.rb | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/mrbgems/mruby-string-ext/mrblib/string.rb b/mrbgems/mruby-string-ext/mrblib/string.rb
index d8fd120a0..4ae0fb7ac 100644
--- a/mrbgems/mruby-string-ext/mrblib/string.rb
+++ b/mrbgems/mruby-string-ext/mrblib/string.rb
@@ -334,8 +334,12 @@ class String
   #    a = "world"
   #    a.prepend("hello ") #=> "hello world"
   #    a                   #=> "hello world"
-  def prepend(arg)
-    self[0, 0] = arg
+  def prepend(*args)
+    len = args.size
+    while len > 0
+      len -= 1
+      self[0, 0] = args[len]
+    end
     self
   end