Fix typo in asyncio.streams.FlowControlMixin documentation

[johnchen902]

No description provided.

[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 your contribution by verifying you have signed the PSF contributor agreement (CLA).

Unfortunately our records indicate you have not signed the CLA. For legal reasons we need you to sign this before we can look at your contribution. Please follow the steps outlined in the CPython devguide to rectify this issue.

Thanks again to your contribution and we look forward to looking at it!

[asvetlov]

@joelthelion the patch is good but please sign a Contributor Agreement: https://www.python.org/psf/contrib/contrib-form/

Without this step I cannot merge the Pull Request, it is Python's policy.
Thanks.

[joelthelion]

@asvetlov I think you got the wrong person.

[asvetlov]

Sorry, autocomplete is not always perfect.

[asvetlov]

@johnchen902 please sign a Contributor Agreement: https://www.python.org/psf/contrib/contrib-form/

[johnchen902]

I signed one right before sending this pull request.

Contributor Form Received | Yes on: 2017-11-27.08:00:00

[asvetlov]

Thanks!
Processing CLA is not automatic, a person should review all CLAs.
Let's wait for a few days.

[johnchen902]

I thought mine has been reviewed, but the 'cla-not-signed' label has to be removed for @the-knights-who-say-ni to recheck.

[asvetlov]

Aha, I see that CLA is signed on https://bugs.python.org/user27450

[asvetlov]

Thanks for contribution!