Update try-block-bad-type.stderr to match impls

Author: TimTheBig

tests/ui/try-block/try-block-bad-type.stderr

@@ -7,10 +7,9 @@ LL |         Err("")?;
    |         this can't be annotated with `?` because it has type `Result<_, &str>`
    |
    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
-   = help: the trait `From<&str>` is not implemented for `TryFromSliceError`
-           but trait `From<Infallible>` is implemented for it
-   = help: for that trait implementation, expected `Infallible`, found `&str`
-   = note: required for `Result<u32, TryFromSliceError>` to implement `FromResidual<Result<Infallible, &str>>`
+   = help: the following other types implement trait `From<T>`:
+             `TryFromSliceError` implements `From<!>`
+             `TryFromSliceError` implements `From<Infallible>`
 
 error[E0271]: type mismatch resolving `<Result<i32, i32> as Try>::Output == &str`
   --> $DIR/try-block-bad-type.rs:12:9