cx,
MAP_FLATTEN,
expr.span.with_lo(map_span.lo()),
- &format!("called `map(..).flatten()` on `{}`", caller_ty_name),
- &format!(
- "try replacing `map` with `{}` and remove the `.flatten()`",
- method_to_use
- ),
- format!("{}({})", method_to_use, closure_snippet),
+ &format!("called `map(..).flatten()` on `{caller_ty_name}`"),
+ &format!("try replacing `map` with `{method_to_use}` and remove the `.flatten()`"),
+ format!("{method_to_use}({closure_snippet})"),
applicability,
);
}