[streams] Fix FinishClosingReadableStream algorithm (#345)

Pass the reader to ReleaseReadableStreamReader. Not the stream.
You can view, comment on, or merge this pull request online at:

  https://github.com/whatwg/streams/pull/345

-- Commit Summary --

  * Fix FinishClosingReadableStream algorithm

-- File Changes --

    M index.bs (2)

-- Patch Links --

https://github.com/whatwg/streams/pull/345.patch
https://github.com/whatwg/streams/pull/345.diff

---
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/streams/pull/345