[whatwg/encoding] Editorial: require returned dictionary members (#185)

As they are never not set. See https://bugzilla.mozilla.org/show_bug.cgi?id=1580154 for context.
You can view, comment on, or merge this pull request online at:

  https://github.com/whatwg/encoding/pull/185

-- Commit Summary --

  * Editorial: require returned dictionary members

-- File Changes --

    M encoding.bs (4)

-- Patch Links --

https://github.com/whatwg/encoding/pull/185.patch
https://github.com/whatwg/encoding/pull/185.diff

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/encoding/pull/185