Odd documentation entry for Event::is_err()

[pfumagalli]

In the docs for Event::is_err()

polling/src/lib.rs

Lines 413 to 414 in cf2d60e

	/// Returns `Some(true)` if the connection has failed, `Some(false)` if there is an error,
	/// or `None` if the platform does not support detecting this condition.

it is stated:

Returns Some(true) if the connection has failed, Some(false) if there is an error,
or None if the platform does not support detecting this condition.

I assume it should say

[...] Some(false) if there is no error, [...]

In the various implementations I can see that the check is normally

Some(self.flags.contains(epoll::EventFlags::ERR))

So I assume my understanding is correct?

[notgull]

I would accept a PR to fix this.

[pfumagalli]

You got it, #204

Thanks!