Rollup merge of #91524 - rukai:fix_extend_from_slice_docs, r=dtolnay

Fix Vec::extend_from_slice docs

`other` is a slice not a vector.
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Matthias Krüger 2021-12-10 22:40:34 +01:00 committed by GitHub
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@ -2199,7 +2199,7 @@ impl<T: Clone, A: Allocator> Vec<T, A> {
/// Clones and appends all elements in a slice to the `Vec`.
///
/// Iterates over the slice `other`, clones each element, and then appends
/// it to this `Vec`. The `other` vector is traversed in-order.
/// it to this `Vec`. The `other` slice is traversed in-order.
///
/// Note that this function is same as [`extend`] except that it is
/// specialized to work with slices instead. If and when Rust gets