Update src/librustdoc/html/render/print_item.rs

Co-authored-by: Joshua Nelson <joshua@yottadb.com>

Author: Manishearth

src/librustdoc/html/render/print_item.rs

@@ -1363,7 +1363,7 @@ fn render_struct(
             w.write_str(" {");
             let count_fields = fields
                 .iter()
-                .filter(|f| if let clean::StructFieldItem(..) = *f.kind { true } else { false })
+                .filter(|f| matches!(clean::StructFieldItem(..) = *f.kind))
                 .count();
             let has_visible_fields = count_fields > 0;
             let toggle = should_hide_fields(count_fields);