Merge "libbinder_rs: disambiguate startThreadPool "recommendation"" into main am: b788606

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/3487390

Change-Id: I7b0ea0fda326f34ea74a1eab7e8bdd37022c0038
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

Author: Treehugger Robot

libs/binder/rust/src/state.rs

@@ -28,8 +28,9 @@ impl ProcessState {
     /// `num_threads` additional threads as specified by
     /// [`set_thread_pool_max_thread_count`](Self::set_thread_pool_max_thread_count).
     ///
-    /// This should be done before creating any Binder client or server. If
-    /// neither this nor [`join_thread_pool`](Self::join_thread_pool) are
+    /// If this is called, it must be done before creating any Binder client or server.
+    ///
+    /// If neither this nor [`join_thread_pool`](Self::join_thread_pool) are
     /// called, then some things (such as callbacks and
     /// [`IBinder::link_to_death`](crate::IBinder::link_to_death)) will silently
     /// not work: the callbacks will be queued but never called as there is no