fix test error

Author: TaKO8Ki

src/test/ui/suggestions/issue-62843.stderr

@@ -2,14 +2,16 @@ error[E0277]: expected a `FnMut<(char,)>` closure, found `String`
   --> $DIR/issue-62843.rs:4:32
    |
 LL |     println!("{:?}", line.find(pattern));
-   |                           ---- ^^^^^^^
-   |                           |    |
-   |                           |    expected an implementor of trait `Pattern<'_>`
-   |                           |    help: consider borrowing here: `&pattern`
+   |                           ---- ^^^^^^^ expected an implementor of trait `Pattern<'_>`
+   |                           |
    |                           required by a bound introduced by this call
    |
    = note: the trait bound `String: Pattern<'_>` is not satisfied
    = note: required because of the requirements on the impl of `Pattern<'_>` for `String`
+help: consider borrowing here
+   |
+LL |     println!("{:?}", line.find(&pattern));
+   |                                +
 
 error: aborting due to previous error