"expected the unit value `()`" formatting bug in Nightly

[iitalics]

playground

The code:

struct Thing;
impl Thing {
    fn takes_unit(&self, u: ()) { u }

    fn func(&self) {
        self.takes_unit()
    }
}

Produces a malformed "help" message:

  |
3 |     fn takes_unit(&self, u: ()) { u }
  |     --------------------------------- defined here
...
6 |         self.takes_unit()
  |              ^^^^^^^^^^
  |
help: expected the unit value `()`. You can create one with a pair of parenthesis
  |
6 |         self.takes_uni()t()
  |                       ^^

[jonas-schievink]

Also, it's "a pair of parentheses", not "parenthesis"

[iitalics]

#44059

[oli-obk]

Whoops. I'll create a fix on Saturday. Should be easy enough