Reword comment.

Author: dok-net

cores/esp8266/Schedule.h

@@ -59,10 +59,11 @@ void run_scheduled_functions();
 //   functions.  However a user function returning false will cancel itself.
 // * Long running operations or yield() or delay() are not allowed in the
 //   recurrent function.
-// * If a wakeupToken is used, anytime during scheduling when its value differs from that
-//   during this call, any remaining delay from repeat_us is disregarded, and fn is executed.
-bool schedule_recurrent_function_us(const std::function<bool(void)>& fn, uint32_t repeat_us,
-    const std::atomic<bool>* wakeupToken = nullptr);
+// * If a wakeupToken is used, anytime during scheduling when its value differs
+//   from the original one in this call, any remaining delay from repeat_us is
+//   disregarded, and fn is executed.
+bool schedule_recurrent_function_us(const std::function<bool(void)>& fn,
+    uint32_t repeat_us, const std::atomic<bool>* wakeupToken = nullptr);
 
 // Test recurrence and run recurrent scheduled functions.
 // (internally called at every `yield()` and `loop()`)