Update posts/2019-05-23-Rust-1.35.0.md

Author: Centril

posts/2019-05-23-Rust-1.35.0.md

@@ -39,7 +39,7 @@ In Rust 1.35.0, the `FnOnce`, `FnMut`, and the `Fn` traits [are now implemented]
 `Box<dyn FnMut>`, and `Box<dyn Fn>` respectively.
 
 Previously, if you wanted to call the function stored in a boxed closure, you had to use [`FnBox`].
-This was because instances of `Box<dyn FnOnce>`, etc did not implement the respective `Fn*` trait.
+This was because instances of `Box<dyn FnOnce>` and friends did not implement the respective `Fn*` traits.
 This also meant that it was not possible to pass boxed functions to code expecting an implementor of a `Fn` trait,
 and you had to create temporary closures to pass them down.