Fix doc nits

Many tiny changes to stdlib doc comments to make them consistent (for example
"Returns foo", rather than "Return foo", per RFC1574), adding missing periods, paragraph
breaks, backticks for monospace style, and other minor nits.

https://github.com/rust-lang/rfcs/blob/master/text/1574-more-api-documentation-conventions.md#appendix-a-full-conventions-text

2 files changed, 3 insertions, 3 deletions

diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs
index 40c0d44df90..ce6a6afdc19 100644
--- a/library/std/src/thread/mod.rs
+++ b/library/std/src/thread/mod.rs
@@ -849,7 +849,7 @@ pub fn panicking() -> bool {
     panicking::panicking()
 }
 
-/// Use [`sleep`].
+/// Uses [`sleep`].
 ///
 /// Puts the current thread to sleep for at least the specified amount of time.
 ///
@@ -1120,7 +1120,7 @@ pub fn park() {
     forget(guard);
 }
 
-/// Use [`park_timeout`].
+/// Uses [`park_timeout`].
 ///
 /// Blocks unless or until the current thread's token is made available or
 /// the specified duration has been reached (may wake spuriously).
diff --git a/library/std/src/thread/scoped.rs b/library/std/src/thread/scoped.rs
index e2e22e5194f..fbd6f8feecf 100644
--- a/library/std/src/thread/scoped.rs
+++ b/library/std/src/thread/scoped.rs
@@ -67,7 +67,7 @@ impl ScopeData {
     }
 }
 
-/// Create a scope for spawning scoped threads.
+/// Creates a scope for spawning scoped threads.
 ///
 /// The function passed to `scope` will be provided a [`Scope`] object,
 /// through which scoped threads can be [spawned][`Scope::spawn`].