vim-patch:7.4.2117

Problem:    Deleting an augroup that still has autocmds does not give a
            warning.  The next defined augroup takes its place.
Solution:   Give a warning and prevent the index being used for another group
            name.

f2c4c39119

src/nvim/version.c

@@ -323,7 +323,7 @@ static int included_patches[] = {
   // 2120,
   // 2119,
   // 2118 NA
-  // 2117,
+  2117,
   // 2116 NA
   // 2115 NA
   // 2114 NA