From db374f0bfe97e81d9a377712a65db63c99714af6 Mon Sep 17 00:00:00 2001
From: Kenshi Muto <kmuto@debian.org>
Date: Sun, 29 Oct 2017 15:26:10 +0900
Subject: [PATCH] allow omit a caption of //source in latexbuilder. Closes #834

---
 lib/review/latexbuilder.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/review/latexbuilder.rb b/lib/review/latexbuilder.rb
index 138aca551..ca554cb3f 100644
--- a/lib/review/latexbuilder.rb
+++ b/lib/review/latexbuilder.rb
@@ -353,7 +353,7 @@ def make_code_block_args(title, caption, lang, first_line_num: 1)
       args
     end
 
-    def source(lines, caption, lang = nil)
+    def source(lines, caption = nil, lang = nil)
       if highlight_listings?
         common_code_block_lst(nil, lines, 'reviewsourcelst', 'title', caption, lang)
       else