docs/uselect: ipoll: Fix grammar/wording of one-shot flag description.
@@ -83,10 +83,10 @@ Methods
way to poll on streams.
If *flags* is 1, one-shot behavior for events is employed: streams for
- which events happened, event mask will be automatically reset (equivalent
- to ``poll.modify(obj, 0)``), so new events for such a stream won't be
- processed until new mask is set with `poll.modify()`. This behavior is
- useful for asynchronous I/O schedulers.
+ which events happened will have their event masks automatically reset
+ (equivalent to ``poll.modify(obj, 0)``), so new events for such a stream
+ won't be processed until new mask is set with `poll.modify()`. This
+ behavior is useful for asynchronous I/O schedulers.
.. admonition:: Difference to CPython
:class: attention
