Unwrap a line and remove some commas

Co-authored-by: Jubilee <46493976+workingjubilee@users.noreply.github.com>

Author: ijackson

library/core/src/task/wake.rs

@@ -543,8 +543,7 @@ impl Waker {
     ///
     /// # Warning
     ///
-    /// Do not use this function as a way to be able to call `poll` methods,
-    /// in production code,
+    /// Do not use this function as a way to be able to call `poll` methods in production code
     /// from within a non-`async`, non-`poll`, function.
     ///
     /// Using a no-op waker for that purpose would cause wakeups to be lost: