This makes it easier to read and to understand it in my opinon. It also
fixes a missing "-" character.
The EV_TIMEOUT flag has no effect here.
It is okay to have multiple events all listening on the same fds; but
- they must either all be edge-triggered, or all not be edge triggered.
+ they must either all be edge-triggered, or not be edge-triggered at all.
When the event becomes active, the event loop will run the provided
callback function, with three arguments. The first will be the provided