From 780fb979a0462feca19ba3bb6d0e3c1ccc7fe9dc Mon Sep 17 00:00:00 2001
From: FrankHB <frankhb1989@gmail.com>
Date: Tue, 29 Sep 2020 18:01:06 +0800
Subject: [PATCH] Avoided the redundant allocation.

Signed-off-by: FrankHB <frankhb1989@gmail.com>
---
 src/book/book.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/book/book.rs b/src/book/book.rs
index 369c6a07..09b51888 100644
--- a/src/book/book.rs
+++ b/src/book/book.rs
@@ -265,7 +265,7 @@ fn load_chapter<P: AsRef<Path>>(
         })?;
 
         if content.as_bytes().starts_with(b"\xef\xbb\xbf") {
-            content = content[3..].to_string()
+            content.replace_range(..3, "");
         }
 
         let stripped = location