From b71fa9bd72fafdade16894c93048aced97b1026b Mon Sep 17 00:00:00 2001
From: Piotr Jawniak <sawyer47@gmail.com>
Date: Sun, 15 Jun 2014 09:31:14 +0200
Subject: [PATCH] Small improvement for json PrettyEncoder

---
 src/libserialize/json.rs | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/src/libserialize/json.rs b/src/libserialize/json.rs
index 8dfd4e778c2a8..a08034951316f 100644
--- a/src/libserialize/json.rs
+++ b/src/libserialize/json.rs
@@ -350,11 +350,7 @@ fn escape_str(s: &str) -> String {
 }
 
 fn spaces(n: uint) -> String {
-    let mut ss = String::new();
-    for _ in range(0, n) {
-        ss.push_str(" ");
-    }
-    return ss
+    String::from_char(n, ' ')
 }
 
 /// A structure for implementing serialization to JSON.