Apply suggestion to fix grammar

Co-authored-by: Caleb Cartwright <calebcartwright@users.noreply.github.com>

Author: joshtriplett

posts/2022-06-30-Rust-1.62.0.md

@@ -65,7 +65,7 @@ As of now only "unit" variants (variants that have no fields) are allowed to be
 
 Previously, `Mutex`, `Condvar`, and `RwLock` were backed by the pthreads library on Linux. The pthreads locks support more features than the Rust APIs themselves do, including runtime configuration, and are designed to be used in languages with fewer static guarantees than Rust provides.
 
-The mutex implementation, for example, is 40 bytes and cannot be moved. This forced us the standard library to allocate a `Box` behind the scenes for each new mutex for platforms that use pthreads.
+The mutex implementation, for example, is 40 bytes and cannot be moved. This forced the standard library to allocate a `Box` behind the scenes for each new mutex for platforms that use pthreads.
 
 Rust's standard library now ships with a raw futex-based implementation of these locks on Linux, which is very lightweight and doesn't require extra allocation. In 1.62.0 `Mutex` only needs 5 bytes for its internal state on Linux, though this may change in future versions.