Revise the text of `vec::split_off()` per review in #65739

Remove the incorrect usage of "copy" as the trait is not called.

1 files changed, 3 insertions, 4 deletions

diff --git a/src/liballoc/vec.rs b/src/liballoc/vec.rs
index 963b012c711..07e4358d644 100644
--- a/src/liballoc/vec.rs
+++ b/src/liballoc/vec.rs
@@ -1333,10 +1333,9 @@ impl<T> Vec<T> {
 
     /// Splits the collection into two at the given index.
     ///
-    /// Copies the range from `[at, len)` to a newly allocated `Self`
-    /// and returns the result. The original `Self` will contain the
-    /// range from `[0, at)`. Note that the capacity of `self` does
-    /// not change.
+    /// Returns a newly allocated vector containing the elements in the range
+    /// `[at, len)`. After the call, the original vector will be left containing
+    /// the elements `[0, at)` with its previous capacity unchanged.
     ///
     /// # Panics
     ///