From 721c96c8ef31ac0c91180d5291fdd22e223bc224 Mon Sep 17 00:00:00 2001
From: Jonathan Warner <jaxbot@gmail.com>
Date: Wed, 29 Jan 2014 11:20:29 +0100
Subject: [PATCH] Use POSIX and Windows compatible command.

---
 autoload/diff.vim | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/autoload/diff.vim b/autoload/diff.vim
index 2f55842..54d825e 100644
--- a/autoload/diff.vim
+++ b/autoload/diff.vim
@@ -17,8 +17,9 @@ function! diff#run_diff(realtime, use_external_grep)
 
   if a:use_external_grep && s:grep_available
     " grep exits with 1 when no matches are found.  However we want to treat
-    " non-matches as non-erroneous behaviour; so we append ` || :`.
-    let cmd .= s:grep_command . ' || :'
+    " non-matches as non-erroneous behaviour; so we OR the command with one
+    " which always returns true.
+    let cmd .= s:grep_command . ' || true'
   endif
 
   let cmd .= ')'