Fix warn(unused_mut) in example

kevinastock · kevinastock · commit b49ce1a599df · 2016-02-22T22:37:02.000-05:00
diff --git a/src/doc/book/patterns.md b/src/doc/book/patterns.md
@@ -303,7 +303,7 @@ struct Person {
 }
 
 let name = "Steve".to_string();
-let mut x: Option<Person> = Some(Person { name: Some(name) });
+let x: Option<Person> = Some(Person { name: Some(name) });
 match x {
     Some(Person { name: ref a @ Some(_), .. }) => println!("{:?}", a),
     _ => {}

Original file line number	Diff line number	Diff line change
`@@ -303,7 +303,7 @@ struct Person {`
`303`	`303`	`}`
`304`	`304`
`305`	`305`	`let name = "Steve".to_string();`
`306`		`-let mut x: Option<Person> = Some(Person { name: Some(name) });`
	`306`	`+let x: Option<Person> = Some(Person { name: Some(name) });`
`307`	`307`	`match x {`
`308`	`308`	`Some(Person { name: ref a @ Some(_), .. }) => println!("{:?}", a),`
`309`	`309`	`_ => {}`