vim-patch:7.4.870

Problem:    May get into an invalid state when using getchar() in an
            expression mapping.
Solution:   Anticipate mod_mask to change. (idea by Yukihiro Nakadaira)

2455c4ede8

src/nvim/version.c

@@ -420,7 +420,7 @@ static int included_patches[] = {
   // 873 NA
   // 872 NA
   // 871,
-  // 870,
+  870,
   // 869 NA
   868,
   // 867 NA