Fix doctest (fixup #23188)

Manishearth · Manishearth · commit 3797827460bd · 2015-03-09T10:16:34.000+05:30
diff --git a/src/doc/trpl/method-syntax.md b/src/doc/trpl/method-syntax.md
@@ -71,6 +71,7 @@ impl Circle {
     fn takes_ownership(self) {
        println!("taking ownership of self!"); 
     }
+}
 ```
 
 Finally, as you may remember, the value of the area of a circle is `π*r²`.

Original file line number	Diff line number	Diff line change
`@@ -71,6 +71,7 @@ impl Circle {`
`71`	`71`	`fn takes_ownership(self) {`
`72`	`72`	`println!("taking ownership of self!");`
`73`	`73`	`}`
	`74`	`+}`
`74`	`75`	```
`75`	`76`
`76`	`77`	Finally, as you may remember, the value of the area of a circle is `π*r²`.