From f282a553fdfa23be7410ad2fcd5115d87904a8a2 Mon Sep 17 00:00:00 2001
From: Jaime Valdemoros <jaimevg1123@gmail.com>
Date: Sun, 7 Jan 2018 16:43:34 +0000
Subject: [PATCH] Remove unnecessary mem::replace

---
 src/preprocess/links.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/preprocess/links.rs b/src/preprocess/links.rs
index 6a92defe..1ad63165 100644
--- a/src/preprocess/links.rs
+++ b/src/preprocess/links.rs
@@ -19,11 +19,11 @@ impl Preprocessor for ReplaceAllPreprocessor {
         for section in &mut book.sections {
             match *section {
                 BookItem::Chapter(ref mut ch) => {
-                    let content = ::std::mem::replace(&mut ch.content, String::new());
                     let base = ch.path.parent()
                         .map(|dir| self.src_dir.join(dir))
                         .ok_or_else(|| String::from("Invalid bookitem path!"))?;
-                    ch.content = replace_all(&content, base)?
+                    let content = replace_all(&ch.content, base)?;
+                    ch.content = content
                 }
                 _ => {}
             }