From 530ea28e8927c9a110354fc862cc63122c8cbda7 Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Tue, 26 Mar 2013 23:28:24 -0400
Subject: [PATCH] Provide more robust example of disabling 'undofile'

---
 README.markdown | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.markdown b/README.markdown
index 2b667da..7a3ff98 100644
--- a/README.markdown
+++ b/README.markdown
@@ -82,7 +82,9 @@ don't like them strewn all over the file system, you have a few options.
 
 3.  Disable them entirely:
 
-        set noundofile
+        if has('persistent_undo')
+          set noundofile
+        endif
 
 You can also just globally ignore them in your SCM of choice.  That's what I
 do.