Fix typo

Author: Mark-Simulacrum

posts/2020-07-30-Rust-1.45.1.md

@@ -27,7 +27,7 @@ appropriate page on our website, and check out the [detailed release notes for
 
 1.45.1 contains a collection of fixes, including one soundness fix. All patches
 in 1.45.1 address bugs that affect only the 1.45.0 release; prior releases are
-not affected by the bugs fixed int his release.
+not affected by the bugs fixed in this release.
 
 ### Fix const propagation with references