vim-patch:7.4.2031 (#5955)

Problem:    The list_lbr_utf8 test fails if ~/.vim/syntax/c.vim sets
            'textwidth' to a non-zero value. (Oyvind A. Holm)
Solution:   Add a setup.vim file that sets 'runtimepath' and $HOME to a safe
            value. (partly by Christian Brabandt, closes vim/vim#912)

89b10421ca

src/nvim/version.c

@@ -409,7 +409,7 @@ static int included_patches[] = {
   // 2034 NA
   2033,
   // 2032 NA
-  // 2031,
+  2031,
   // 2030 NA
   // 2029,
   2028,