tokio: fix typos (#5604)

tokio-util/src/time/delay_queue.rs

@@ -62,7 +62,7 @@ use std::task::{self, Poll, Waker};
 /// performance and scalability benefits.
 ///
 /// State associated with each entry is stored in a [`slab`]. This amortizes the cost of allocation,
-/// and allows reuse of the memory allocated for expired entires.
+/// and allows reuse of the memory allocated for expired entries.
 ///
 /// Capacity can be checked using [`capacity`] and allocated preemptively by using
 /// the [`reserve`] method.

tokio/src/runtime/metrics/runtime.rs

@@ -68,7 +68,7 @@ impl RuntimeMetrics {
         self.handle.inner.num_blocking_threads()
     }
 
-    /// Returns the number of idle threads, which hve spawned by the runtime
+    /// Returns the number of idle threads, which have spawned by the runtime
     /// for `spawn_blocking` calls.
     ///
     /// # Examples

tokio/src/util/once_cell.rs

@@ -19,7 +19,7 @@ impl<T> OnceCell<T> {
         }
     }
 
-    /// Get the value inside this cell, intiailizing it using the provided
+    /// Get the value inside this cell, initializing it using the provided
     /// function if necessary.
     ///
     /// If the `init` closure panics, then the `OnceCell` is poisoned and all