doc: apply suggestions

1 files changed, 3 insertions, 2 deletions

diff --git a/library/alloc/src/macros.rs b/library/alloc/src/macros.rs
index bbff1d3dc4d..7d4eff6185d 100644
--- a/library/alloc/src/macros.rs
+++ b/library/alloc/src/macros.rs
@@ -29,8 +29,9 @@
 /// to the same boxed integer value, not five references pointing to independently
 /// boxed integers.
 ///
-/// Also, note that `[T; 0]` is a valid initializer. This will initialize (or call)
-/// `T` but not populate the vector with it, so be mindful of side effects.
+/// Also, note that `vec![expr; 0]` is allowed, and produces an empty vector.
+/// This will still evaluate `expr`, however, and immediately drop the resulting value, so
+/// be mindful of side effects.
 ///
 /// [`Vec`]: crate::vec::Vec
 #[cfg(not(test))]