Fix typo in `schedule_once` docstring
@@ -702,7 +702,7 @@ def schedule_interval_soft(func, interval, *args, **kwargs):
def schedule_once(func, delay, *args, **kwargs):
"""Schedule ``func`` to be called once after ``delay`` seconds.
- This function uses the fefault clock. ``delay`` can be a float. The
+ This function uses the default clock. ``delay`` can be a float. The
arguments passed to ``func`` are ``dt`` (time since last function call),
followed by any ``*args`` and ``**kwargs`` given here.
