patch 8.0.0421: diff mode wrong when adding line at end of buffer commit https://github.com/vim/vim/commit/f58a8475e17bd566760fc7e2a17d35ddf4edacf2 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 5 18:03:04 2017 +0100 patch 8.0.0421: diff mode wrong when adding line at end of buffer Problem: Diff mode is displayed wrong when adding a line at the end of a buffer. Solution: Adjust marks in diff mode. (James McCoy, closes #1329)

--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    421,
+/**/
     420,
 /**/
     419,