From ae1c64ac92eaec24781dc6e099292ffb2d810442 Mon Sep 17 00:00:00 2001
From: Elliott Hughes <enh@google.com>
Date: Fri, 3 Mar 2023 23:46:34 +0000
Subject: [PATCH] Slightly simplify perror().

Using %m is slightly less code, and means that perror() wouldn't touch
the strerror buffer in TLS. Doesn't matter, but noticed while I was
looking at this for another reason, and since it's _less_ code...

Test: treehugger
Change-Id: I99d31a5c326962958ad843ec4da2c3cc3b93b048
---
 libc/stdio/stdio.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libc/stdio/stdio.cpp b/libc/stdio/stdio.cpp
index 4f12fd030..645aefa23 100644
--- a/libc/stdio/stdio.cpp
+++ b/libc/stdio/stdio.cpp
@@ -884,7 +884,7 @@ wint_t getwchar() {
 
 void perror(const char* msg) {
   if (msg == nullptr) msg = "";
-  fprintf(stderr, "%s%s%s\n", msg, (*msg == '\0') ? "" : ": ", strerror(errno));
+  fprintf(stderr, "%s%s%m\n", msg, (*msg == '\0') ? "" : ": ");
 }
 
 int printf(const char* fmt, ...) {