From 01c4f11cf82f0b4cf5468f2e41d2ef9e351b7a08 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 6 Jun 2013 20:47:04 +0530
Subject: [PATCH] libstd: use fmt! in to_str impl for (one|two)-tuple

The three-tuple uses fmt!, and there's no reason to hand-concatenate
strings.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
 src/libstd/to_str.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libstd/to_str.rs b/src/libstd/to_str.rs
index d15c0a31f5f0c..bfda92d46a284 100644
--- a/src/libstd/to_str.rs
+++ b/src/libstd/to_str.rs
@@ -44,7 +44,7 @@ impl<A:ToStr> ToStr for (A,) {
     fn to_str(&self) -> ~str {
         match *self {
             (ref a,) => {
-                ~"(" + a.to_str() + ",)"
+                fmt!("(%s,)", (*a).to_str())
             }
         }
     }
@@ -95,7 +95,7 @@ impl<A:ToStr,B:ToStr> ToStr for (A, B) {
         //let &(ref a, ref b) = self;
         match *self {
             (ref a, ref b) => {
-                ~"(" + a.to_str() + ", " + b.to_str() + ")"
+                fmt!("(%s, %s)", (*a).to_str(), (*b).to_str())
             }
         }
     }