Rollup merge of #104403 - koka831:lint-doc, r=Dylan-DPC

matthiaskrgr · web-flow · commit da2beab3f67a · 2022-11-15T01:40:45.000+01:00
Specify language of code comment to generate document Fix `let_underscore_drop` comment https://doc.rust-lang.org/rustc/lints/listing/allowed-by-default.html#example-7
diff --git a/compiler/rustc_lint/src/let_underscore.rs b/compiler/rustc_lint/src/let_underscore.rs
@@ -11,7 +11,8 @@ declare_lint! {
     /// scope.
     ///
     /// ### Example
-    /// ```
+    ///
+    /// ```rust
     /// struct SomeStruct;
     /// impl Drop for SomeStruct {
     ///     fn drop(&mut self) {
