reformat some comments that break certain paren-matching modes

Apparently the following comment format brings smartparens to its knees:

```lisp
(if something
    (stuff)
  (other)
  );something
```

Putting a space between the closing paren and the ; fixes the problem:

```lisp
(if something
    (stuff)
  (other)
  ) ;something
```

Add spaces to all comments that are currently squashed up against a
paren.

---

It's possible that this should actually be fixed in smartparens (what say ye, @Fuco1?) but since the `);` syntax isn't exactly canonical I think it doesn't hurt to fix it here.