Use consistent syntax style for { ... } "pseudocode" (nvim-lua#1247)

```
require('gitsigns').setup({ ... })
```

This was the first occurrence

It may be nice to have the same style everywhere

Cosmetic change (just to make docs/comments even more perfect)

init.lua

@@ -555,8 +555,8 @@ require('lazy').setup({
         --
 
         lua_ls = {
-          -- cmd = {...},
-          -- filetypes = { ...},
+          -- cmd = { ... },
+          -- filetypes = { ... },
           -- capabilities = {},
           settings = {
             Lua = {