Document cancelation safety `AsyncBufReadExt::fill_buf`

[jkalez]

Version
1.36

Platform
All

Description
Documentation does not comment on the cancellation safety of AsyncBufReadExt::fill_buf. In my experimentation and in reading the source, I have not been able to determine the cancellation safety of fill_buf. Hopefully developers more familiar with the code can provide this information.

[Alice Ryhl]

Thanks. That should definitely be fixed. The method is cancellation safe.