From 4ab5ce5c957f3792f5549574166056dde0b8fb31 Mon Sep 17 00:00:00 2001
From: Ben Greenman <benjaminlgreenman@gmail.com>
Date: Wed, 18 May 2016 17:22:22 -0400
Subject: [PATCH] [list] typo in list lib

---
 trivial/private/list.rkt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/trivial/private/list.rkt b/trivial/private/list.rkt
index f0fdbea..e21301c 100644
--- a/trivial/private/list.rkt
+++ b/trivial/private/list.rkt
@@ -96,7 +96,7 @@
      [(~or (null)
            (#%plain-app null))
       0]
-     [+ #f]))
+     [_ #f]))
 
   (define-values (lst-length-key lst? lst-define lst-let)
     (make-value-property 'list:length parse-list-length))