Avoid confusing acronym in SE-0371 (#2538)

Author: ktoso

proposals/0371-isolated-synchronous-deinit.md

@@ -13,7 +13,7 @@ This feature allows `deinit`'s of actors and global-actor isolated classes to ac
 
 ## Motivation
 
-Restrictions imposed by [SE-0327](https://github.com/swiftlang/swift-evolution/blob/main/proposals/0327-actor-initializers.md) reduce the usefulness of explicit `deinit`s in actors and GAITs. Workarounds for these limitations may involve creation of `close()`-like methods, or even manual reference counting if the API should be able to serve several clients.
+Restrictions imposed by [SE-0327](https://github.com/swiftlang/swift-evolution/blob/main/proposals/0327-actor-initializers.md) reduce the usefulness of explicit `deinit`s in actors and global actor isolated types. Workarounds for these limitations may involve creation of `close()`-like methods, or even manual reference counting if the API should be able to serve several clients.
 
 In cases when `deinit` belongs to a subclass of `UIView` or `UIViewController` which are known to call `dealloc` on the main thread, developers may be tempted to silence the diagnostic by adopting `@unchecked Sendable` in types that are not actually  sendable. This undermines concurrency checking by the compiler, and may lead to data races when using incorrectly marked types in other places.