From de7fefa04c74ecaa7618c910a74ae1cf62affa8e Mon Sep 17 00:00:00 2001
From: Andrea Canciani <ranma42@gmail.com>
Date: Thu, 12 Dec 2019 21:09:17 +0100
Subject: [PATCH] Minor cleanup in `Pattern::{is_prefix_of,is_suffix_of}` for
 `char`

---
 src/libcore/str/pattern.rs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/libcore/str/pattern.rs b/src/libcore/str/pattern.rs
index 71dd77fee73..1b6e6f1c2e4 100644
--- a/src/libcore/str/pattern.rs
+++ b/src/libcore/str/pattern.rs
@@ -450,15 +450,13 @@ impl<'a> Pattern<'a> for char {
 
     #[inline]
     fn is_prefix_of(self, haystack: &'a str) -> bool {
-        let mut buffer = [0u8; 4];
-        self.encode_utf8(&mut buffer).is_prefix_of(haystack)
+        self.encode_utf8(&mut [0u8; 4]).is_prefix_of(haystack)
     }
 
     #[inline]
     fn is_suffix_of(self, haystack: &'a str) -> bool where Self::Searcher: ReverseSearcher<'a>
     {
-        let mut buffer = [0u8; 4];
-        self.encode_utf8(&mut buffer).is_suffix_of(haystack)
+        self.encode_utf8(&mut [0u8; 4]).is_suffix_of(haystack)
     }
 }