fix typo in diagnostic sample code

pnkfelix · pnkfelix · commit c239fee2b60c · 2016-10-13T13:44:57.000+02:00
diff --git a/src/librustc_typeck/diagnostics.rs b/src/librustc_typeck/diagnostics.rs
@@ -2828,7 +2828,7 @@ that impl must be declared as an `unsafe impl. For example:
 #![feature(dropck_eyepatch)]
 
 struct Foo<X>(X);
-impl<#[may_dangle] X> Drop for Foo {
+impl<#[may_dangle] X> Drop for Foo<X> {
     fn drop(&mut self) { }
 }
 ```

Original file line number	Diff line number	Diff line change
@@ -2828,7 +2828,7 @@ that impl must be declared as an `unsafe impl. For example:
`2828`	`2828`	`#![feature(dropck_eyepatch)]`
`2829`	`2829`
`2830`	`2830`	`struct Foo<X>(X);`
`2831`		`-impl<#[may_dangle] X> Drop for Foo {`
	`2831`	`+impl<#[may_dangle] X> Drop for Foo<X> {`
`2832`	`2832`	`fn drop(&mut self) { }`
`2833`	`2833`	`}`
`2834`	`2834`	```