From fbce952193d38328c39262cf2fb7f7bfbe088a70 Mon Sep 17 00:00:00 2001
From: Esteban Küber <esteban@kuber.com.ar>
Date: Sun, 15 Jul 2018 11:52:11 -0700
Subject: review comments: modify note wording and change `println`

- Don't print the newline on its own to avoid the possibility of
  printing it out of order due to `stdout` locking.
- Modify wording of `concat!()` with non-literals to not mislead into
  believing that only `&str` literals are accepted.
- Add test for `concat!()` with non-literals.
---
 src/libstd/macros.rs | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/macros.rs b/src/libstd/macros.rs
index a4a6ed73c61..7f3c8fcdd5a 100644
--- a/src/libstd/macros.rs
+++ b/src/libstd/macros.rs
@@ -155,14 +155,7 @@ macro_rules! print {
 #[stable(feature = "rust1", since = "1.0.0")]
 macro_rules! println {
     () => (print!("\n"));
-    ($fmt:expr) => ({
-        print!($fmt);
-        print!("\n");
-    });
-    ($fmt:expr, $($arg:tt)*) => ({
-        print!($fmt, $($arg)*);
-        print!("\n");
-    });
+    ($($arg:tt)*) => (print!("{}\n", format_args!($($arg)*)));
 }
 
 /// Macro for printing to the standard error.
-- 
cgit 1.4.1-3-g733a5