vim-patch:7.4.515

Problem:    In a help buffer the global 'foldmethod' is used.  (Paul Marshall)
Solution:   Reset 'foldmethod' when starting to edit a help file.  Move the
            code to a separate function.

https://github.com/vim/vim/releases/tag/v7-4-515

src/nvim/version.c

@@ -225,7 +225,7 @@ static int included_patches[] = {
   518,
   517,
   516,
-  //515,
+  515,
   514,
   513,
   //512 NA