From 8877dbe400d84c1f595cb4aa8a06fc71640a43c0 Mon Sep 17 00:00:00 2001
From: Yusuke Endoh <mame@ruby-lang.org>
Date: Wed, 7 Aug 2019 03:13:17 +0900
Subject: [PATCH] ext/ripper/lib/ripper/lexer.rb: Consistently use `Array#push`

instead of <<.  All the other callsites use `push`.
---
 ext/ripper/lib/ripper/lexer.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/ripper/lib/ripper/lexer.rb b/ext/ripper/lib/ripper/lexer.rb
index 8aad81b74b..73933ca5b6 100644
--- a/ext/ripper/lib/ripper/lexer.rb
+++ b/ext/ripper/lib/ripper/lexer.rb
@@ -161,7 +161,7 @@ class Ripper
     def on_heredoc_beg(tok)
       @stack.push @buf
       buf = []
-      @buf << buf
+      @buf.push buf
       @buf = buf
       @buf.push Elem.new([lineno(), column()], __callee__, tok, state())
     end