From 523dbfc312869ba056075b3f001dc3485f89484d Mon Sep 17 00:00:00 2001
From: Alex Burka <durka42+github@gmail.com>
Date: Wed, 15 Jun 2016 16:35:03 -0400
Subject: [PATCH] update reference for #29734

---
 src/doc/reference.md | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/doc/reference.md b/src/doc/reference.md
index fb8ea0f5661d3..6e794321f6444 100644
--- a/src/doc/reference.md
+++ b/src/doc/reference.md
@@ -114,12 +114,8 @@ Non-doc comments are interpreted as a form of whitespace.
 
 ## Whitespace
 
-Whitespace is any non-empty string containing only the following characters:
-
-- `U+0020` (space, `' '`)
-- `U+0009` (tab, `'\t'`)
-- `U+000A` (LF, `'\n'`)
-- `U+000D` (CR, `'\r'`)
+Whitespace is any non-empty string containing only characters that have the
+`Pattern_White_Space` Unicode property.
 
 Rust is a "free-form" language, meaning that all forms of whitespace serve only
 to separate _tokens_ in the grammar, and have no semantic significance.