Invalid PullRequestComment InReplyTo JSON tag

[emersonwood]

The PullRequestComment InReplyTo JSON tag mismatches the one returned from the API, so the value is always encoded as nil.

The current tag is in_reply_to:

go-github/github/pulls_comments.go

Line 17 in e96f1f1

InReplyTo *int64 `json:"in_reply_to,omitempty"`

Whereas the correct one is in_reply_to_id. Relevant docs: https://developer.github.com/v3/pulls/comments/#get-a-single-comment

[emersonwood]

Actually, this looks to be an inconsistency with the GitHub API.

Getting a comment returns in_reply_to_id: https://developer.github.com/v3/pulls/comments/#get-a-single-comment

Creating a comment takes in_reply_to: https://developer.github.com/v3/pulls/comments/#create-a-comment

Trying to create a comment with #949 returns a 422 error, in_reply_to wasn't supplied.