From 4e2c9c065a06bf9cb5d7dd46e3b29f62a1c20057 Mon Sep 17 00:00:00 2001
From: Brad Dunbar <dunbarb2@gmail.com>
Date: Wed, 17 Apr 2024 05:27:00 -0400
Subject: [PATCH] Truncate tweaks (#694)

---
 src/bytes_mut.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/bytes_mut.rs b/src/bytes_mut.rs
index c9f563430..0248df856 100644
--- a/src/bytes_mut.rs
+++ b/src/bytes_mut.rs
@@ -422,8 +422,9 @@ impl BytesMut {
     /// assert_eq!(buf, b"hello"[..]);
     /// ```
     pub fn truncate(&mut self, len: usize) {
-        if len <= self.len() {
+        if len < self.len() {
             unsafe {
+                // SAFETY: Shrinking the buffer cannot expose uninitialized bytes.
                 self.set_len(len);
             }
         }