use rustc_span::symbol::sym;
declare_clippy_lint! {
- /// **What it does:** Checks for uses of `to_string()` in `Display` traits.
+ /// ### What it does
+ /// Checks for uses of `to_string()` in `Display` traits.
///
- /// **Why is this bad?** Usually `to_string` is implemented indirectly
+ /// ### Why is this bad?
+ /// Usually `to_string` is implemented indirectly
/// via `Display`. Hence using it while implementing `Display` would
/// lead to infinite recursion.
///
- /// **Known problems:** None.
- ///
- /// **Example:**
+ /// ### Example
///
/// ```rust
/// use std::fmt;