feat: Backport nvim-lua#1395

Signed-off-by: Michal Drla <michal.drla@outlook.com>

Author: mimotej

lua/default/plugins/autoformat.lua

@@ -22,14 +22,20 @@ return {
         local disable_filetypes = { c = true, cpp = true }
         local lsp_format_opt
         if disable_filetypes[vim.bo[bufnr].filetype] then
-          lsp_format_opt = 'never'
+          --  lsp_format_opt = 'never'
+          -- Configuration taken from https://github.com/nvim-lua/kickstart.nvim/pull/1395
+          return nil
         else
-          lsp_format_opt = 'fallback'
+          --  lsp_format_opt = 'fallback'
+          return {
+            timeout_ms = 500,
+            lsp_format = 'fallback',
+          }
         end
-        return {
-          timeout_ms = 500,
-          lsp_format = lsp_format_opt,
-        }
+        --  return {
+        --    timeout_ms = 500,
+        --    lsp_format = lsp_format_opt,
+        --  }
       end,
       formatters_by_ft = {
         lua = { 'stylua' },