From 1e15c2fde5dd456d879b90259c414a73d5804550 Mon Sep 17 00:00:00 2001
From: Joshua Nelson <jyn514@gmail.com>
Date: Sun, 20 Dec 2020 14:33:58 -0500
Subject: [PATCH] Remove unnecessary scope

---
 src/librustdoc/html/markdown.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs
index 7600b63bb8859..e4a0d80674fbc 100644
--- a/src/librustdoc/html/markdown.rs
+++ b/src/librustdoc/html/markdown.rs
@@ -1160,6 +1160,8 @@ crate fn markdown_links(md: &str) -> Vec<(String, Range<usize>)> {
     }
 
     let mut links = vec![];
+    // Used to avoid mutable borrow issues in the `push` closure
+    // Probably it would be more efficient to use a `RefCell` but it doesn't seem worth the churn.
     let mut shortcut_links = vec![];
 
     let span_for_link = |link: &str, span: Range<usize>| {