Fix typo from Lib/asyncio/events.py

[wudenggang]

#typo fix : system

[the-knights-who-say-ni]

Hello, and thanks for your contribution!

I'm a bot set up to make sure that the project can legally accept this contribution by verifying everyone involved has signed the PSF contributor agreement (CLA).

Recognized GitHub username

We couldn't find a bugs.python.org (b.p.o) account corresponding to the following GitHub usernames:

@wudenggang

This might be simply due to a missing "GitHub Name" entry in one's b.p.o account settings. This is necessary for legal reasons before we can look at this contribution. Please follow the steps outlined in the CPython devguide to rectify this issue.

You can check yourself to see if the CLA has been received.

Thanks again for the contribution, we look forward to reviewing it!

[corona10]

Thanks for the contribution, but please sign up the CLA first :)

[eamanu]

Good catch.

[wudenggang]

I have signed: "Contributor Agreement"

[tirkarthi]

LGTM. Thanks.

[tirkarthi]

test__xxsubinterpreters failure doesn't seem to be related to this PR. Closing and opening the PR to trigger a rebuild.

[tirkarthi]

Build is successful. @corona10 would you like to merge this PR?

[corona10]

LGTM,

@tirkarthi Since I am in post mentoring period, I will merge the PR in 3 days :)
cc @vstinner

[corona10]

@wudenggang
Thank you for contributing to the CPython project.
Now your PR is merged, I merged your PR with changing title ;)