/// Tries to reserve capacity for at least `additional` more elements to be inserted
/// in the `HashSet`. The collection may reserve more space to speculatively
- /// avoid frequent reallocations. After calling `reserve`,
+ /// avoid frequent reallocations. After calling `try_reserve`,
/// capacity will be greater than or equal to `self.len() + additional` if
/// it returns `Ok(())`.
/// Does nothing if capacity is already sufficient.