rewrite 'Why is this bad?'

Author: kyoto7250

clippy_lints/src/default_instead_of_iter_empty.rs

@@ -12,7 +12,7 @@ declare_clippy_lint! {
     /// It checks for `std::iter::Empty::default()` and suggests replacing it with
     /// `std::iter::empty()`.
     /// ### Why is this bad?
-    /// `std::iter::empty()` is shorter than `std::iter::Empty::default()` and returns an equivalent result
+    /// `std::iter::empty()` is the more idiomatic way.
     /// ### Example
     /// ```rust
     /// let _ = std::iter::Empty::<usize>::default();