Rollup merge of rust-lang#47160 - rust-lang:steveklabnik-patch-1, r=alexcrichton

This isn't in Rust 1.23

r? @alexcrichton

Author: kennytm

RELEASES.md

@@ -38,7 +38,6 @@ Stabilized APIs
 
 Cargo
 -----
-- [Cargo now supports alternative registries][cargo/4506]
 - [Cargo now supports uninstallation of multiple packages][cargo/4561]
   eg. `cargo uninstall foo bar` uninstalls `foo` and `bar`.
 - [Added unit test checking to `cargo check`][cargo/4592]
@@ -49,7 +48,6 @@ Misc
 ----
 - [Releases now ship with the Cargo book documentation.][45692]
 - [rustdoc now prints rendering warnings on every run.][45324]
-- [Release tarballs now come with rustfmt][45903]
 
 Compatibility Notes
 -------------------
@@ -83,9 +81,7 @@ Compatibility Notes
 [45852]: https://github.com/rust-lang/rust/issues/45852
 [45853]: https://github.com/rust-lang/rust/pull/45853
 [45887]: https://github.com/rust-lang/rust/pull/45887
-[45903]: https://github.com/rust-lang/rust/pull/45903
 [45920]: https://github.com/rust-lang/rust/pull/45920
-[cargo/4506]: https://github.com/rust-lang/cargo/pull/4506
 [cargo/4561]: https://github.com/rust-lang/cargo/pull/4561
 [cargo/4592]: https://github.com/rust-lang/cargo/pull/4592
 [cargo/4637]: https://github.com/rust-lang/cargo/pull/4637