From f273e43cb83c1617969ebd4eaa51aa5bc3f0b855 Mon Sep 17 00:00:00 2001
From: Anatolii Sakhnik <sakhnik@gmail.com>
Date: Sun, 9 Dec 2018 20:17:04 +0200
Subject: vim-patch:8.1.0513: no error for set diffopt+=algorithm:

Problem:    No error for set diffopt+=algorithm:.
Solution:   Check for missing argument. (Hirohito Higashi, closes #3598)

https://github.com/vim/vim/commit/d0721058f494143186f66a60151c9634031a8c96
---
 src/nvim/diff.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/nvim/diff.c b/src/nvim/diff.c
index 6dbebd5e29..19751cb73a 100644
--- a/src/nvim/diff.c
+++ b/src/nvim/diff.c
@@ -2165,6 +2165,8 @@ int diffopt_changed(void)
       } else if (STRNCMP(p, "histogram", 9) == 0) {
         p += 9;
         diff_algorithm_new = XDF_HISTOGRAM_DIFF;
+      } else {
+        return FAIL;
       }
     }
 
-- 
cgit