Rollup merge of #96701 - kraktus:alloc_example_2018_edition, r=Mark-Simulacrum

compiler-errors · web-flow · commit 102bbc9ad302 · 2022-05-06T20:49:31.000-07:00
update `jemallocator` example to use 2018 edition import syntax
diff --git a/library/std/src/alloc.rs b/library/std/src/alloc.rs
@@ -42,8 +42,6 @@
 //! [`GlobalAlloc`] trait. This type can be provided by an external library:
 //!
 //! ```rust,ignore (demonstrates crates.io usage)
-//! extern crate jemallocator;
-//!
 //! use jemallocator::Jemalloc;
 //!
 //! #[global_allocator]
