From 272227403d80f6dc1fba840566b1a7991b9e1a54 Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@tremily.us>
Date: Mon, 8 Jan 2018 13:56:54 -0800
Subject: [PATCH] doc/guide/dependencies: Add a 'rust' language marker

This had been added to the non-book docs in 2ad45a56 ([doc] Sync back
doc/book changes into old docs, 2017-08-31, #4455), despite the fact
that the book didn't actually have that marker:

  $ git cat-file -p 2ad45a56:src/doc/book/src/guide/dependencies.md | grep -A2 'You can now use the'
  You can now use the `regex` library using `extern crate` in `main.rs`.

  ```
---
 src/doc/src/guide/dependencies.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/doc/src/guide/dependencies.md b/src/doc/src/guide/dependencies.md
index e199487f21e..fc16eb614c4 100644
--- a/src/doc/src/guide/dependencies.md
+++ b/src/doc/src/guide/dependencies.md
@@ -70,7 +70,7 @@ we choose to `cargo update`.
 
 You can now use the `regex` library using `extern crate` in `main.rs`.
 
-```
+```rust
 extern crate regex;
 
 use regex::Regex;