patch 7.4.2251
Problem: In rare cases diffing 4 buffers is not enough.
Solution: Raise the limit to 8. (closes #1000)
diff --git a/runtime/doc/diff.txt b/runtime/doc/diff.txt
index db7e4e8..0954f0e 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* *vimdiff* *gvimdiff* *diff-mode*
-This file describes the |+diff| feature: Showing 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.
@@ -117,7 +117,7 @@
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.