vim-patch:7.4.1779

Problem:    Using negative index in strcharpart(). (Yegappan Lakshmanan)
Solution:   Assume single byte when using a negative iindex.

73dfe917ba

src/nvim/version.c

@@ -663,7 +663,7 @@ static int included_patches[] = {
   // 1782,
   // 1781,
   // 1780,
-  // 1779,
+  1779,
   // 1778 NA
   // 1777 NA
   // 1776 NA