doc: conversion of doc comments to indicative mood (#4174)

Co-authored-by: Antonello Palazzi <[email protected]>

tokio/src/runtime/blocking/pool.rs

@@ -25,28 +25,28 @@ pub(crate) struct Spawner {
 }
 
 struct Inner {
-    /// State shared between worker threads
+    /// State shared between worker threads.
     shared: Mutex<Shared>,
 
     /// Pool threads wait on this.
     condvar: Condvar,
 
-    /// Spawned threads use this name
+    /// Spawned threads use this name.
     thread_name: ThreadNameFn,
 
-    /// Spawned thread stack size
+    /// Spawned thread stack size.
     stack_size: Option<usize>,
 
-    /// Call after a thread starts
+    /// Call after a thread starts.
     after_start: Option<Callback>,
 
-    /// Call before a thread stops
+    /// Call before a thread stops.
     before_stop: Option<Callback>,
 
-    // Maximum number of threads
+    // Maximum number of threads.
     thread_cap: usize,
 
-    // Customizable wait timeout
+    // Customizable wait timeout.
     keep_alive: Duration,
 }
 
@@ -67,7 +67,7 @@ struct Shared {
     /// calling shutdown handles joining on these.
     worker_threads: HashMap<usize, thread::JoinHandle<()>>,
     /// This is a counter used to iterate worker_threads in a consistent order (for loom's
-    /// benefit)
+    /// benefit).
     worker_thread_index: usize,
 }
 
@@ -75,7 +75,7 @@ type Task = task::UnownedTask<NoopSchedule>;
 
 const KEEP_ALIVE: Duration = Duration::from_secs(10);
 
-/// Run the provided function on an executor dedicated to blocking operations.
+/// Runs the provided function on an executor dedicated to blocking operations.
 pub(crate) fn spawn_blocking<F, R>(func: F) -> JoinHandle<R>
 where
     F: FnOnce() -> R + Send + 'static,