From 458b1fc0e793a1e1adad758626857f43e9674334 Mon Sep 17 00:00:00 2001
From: Shougo Matsushita <Shougo.Matsu@gmail.com>
Date: Wed, 16 Nov 2016 08:25:25 +0900
Subject: [PATCH] vim-patch:7.4.2251

Problem:    In rare cases diffing 4 buffers is not enough.
Solution:   Raise the limit to 8. (closes vim/vim#1000)

https://github.com/vim/vim/commit/015efc32c1add6269099364835ddf85ff257b3c6
---
 runtime/doc/diff.txt   | 8 ++++----
 src/nvim/buffer_defs.h | 2 +-
 src/nvim/version.c     | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/runtime/doc/diff.txt b/runtime/doc/diff.txt
index 12bc655edc..6b45f8552f 100644
--- a/runtime/doc/diff.txt
+++ b/runtime/doc/diff.txt
@@ -1,12 +1,12 @@
-*diff.txt*      For Vim version 7.4.  Last change: 2015 Nov 01
+*diff.txt*      For Vim version 7.4.  Last change: 2016 Aug 24
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
 
 
 							*diff* *diff-mode*
-This file describes |diff-mode|, which shows the differences between two,
-three, or four versions of the same file.
+This file describes the |+diff| feature: Showing differences between two to
+eight versions of the same file.
 
 The basics are explained in section |08.7| of the user manual.
 
@@ -109,7 +109,7 @@ To make these commands use a vertical split, prepend |:vertical|.  Examples: >
 If you always prefer a vertical split include "vertical" in 'diffopt'.
 
 							*E96*
-There can be up to four buffers with 'diff' set.
+There can be up to eight buffers with 'diff' set.
 
 Since the option values are remembered with the buffer, you can edit another
 file for a moment and come back to the same file and be in diff mode again.
diff --git a/src/nvim/buffer_defs.h b/src/nvim/buffer_defs.h
index 2e6316c74a..43b2d42fbe 100644
--- a/src/nvim/buffer_defs.h
+++ b/src/nvim/buffer_defs.h
@@ -771,7 +771,7 @@ struct file_buffer {
 /*
  * Stuff for diff mode.
  */
-# define DB_COUNT 4     /* up to four buffers can be diff'ed */
+# define DB_COUNT 8     /* up to four buffers can be diff'ed */
 
 /*
  * Each diffblock defines where a block of lines starts in each of the buffers
diff --git a/src/nvim/version.c b/src/nvim/version.c
index 08eff53d1e..b08aecf748 100644
--- a/src/nvim/version.c
+++ b/src/nvim/version.c
@@ -191,7 +191,7 @@ static int included_patches[] = {
   // 2254 NA
   // 2253 NA
   // 2252 NA
-  // 2251,
+  2251,
   // 2250,
   // 2249,
   // 2248,