From 8984242373d1317494f32e8f7326ac7d8fd52006 Mon Sep 17 00:00:00 2001
From: Andrea Canciani <ranma42@gmail.com>
Date: Thu, 28 Jan 2016 15:18:42 +0100
Subject: [PATCH] Fix `make tidy` and name what is being computed

---
 src/libcore/char.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libcore/char.rs b/src/libcore/char.rs
index c97d7b086f4d..1b2083929ceb 100644
--- a/src/libcore/char.rs
+++ b/src/libcore/char.rs
@@ -470,7 +470,8 @@ impl Iterator for EscapeUnicode {
                 Some('{')
             }
             EscapeUnicodeState::Value => {
-                let c = from_digit(((self.c as u32) >> (self.hex_digit_idx * 4)) & 0xf, 16).unwrap();
+                let hex_digit = ((self.c as u32) >> (self.hex_digit_idx * 4)) & 0xf;
+                let c = from_digit(hex_digit, 16).unwrap();
                 if self.hex_digit_idx == 0 {
                     self.state = EscapeUnicodeState::RightBrace;
                 } else {