From 9fc44239ec7e9f682797bd9e38368d0ec4457077 Mon Sep 17 00:00:00 2001
From: Mikhail Zabaluev <mikhail.zabaluev@gmail.com>
Date: Sat, 7 Nov 2020 23:57:27 +0200
Subject: [PATCH] Make is_write_vectored return true for BufWriter

BufWriter provides an efficient implementation of
write_vectored also when the underlying writer does not
support vectored writes.
---
 library/std/src/io/buffered/bufwriter.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/std/src/io/buffered/bufwriter.rs b/library/std/src/io/buffered/bufwriter.rs
index d8d62c4b3144..e42fa4297ef5 100644
--- a/library/std/src/io/buffered/bufwriter.rs
+++ b/library/std/src/io/buffered/bufwriter.rs
@@ -383,7 +383,7 @@ impl<W: Write> Write for BufWriter<W> {
     }
 
     fn is_write_vectored(&self) -> bool {
-        self.get_ref().is_write_vectored()
+        true
     }
 
     fn flush(&mut self) -> io::Result<()> {