prow/github/fakegithub/fakegithub.go
func (f *FakeClient) CreateComment(owner, repo string, number int, comment string) error {
	f.IssueCommentsAdded = append(f.IssueCommentsAdded, fmt.Sprintf("%s/%s#%d:%s", owner, repo, number, comment))
	f.IssueComments[number] = append(f.IssueComments[number], github.IssueComment{
		ID:   f.IssueCommentID,
		Body: comment,
		User: github.User{Login: botName},
	})
	f.IssueCommentID++
	return nil
}
func (f *FakeClient) CreateComment(owner, repo string, number int, comment string) error {
	f.IssueCommentsAdded = append(f.IssueCommentsAdded, fmt.Sprintf("%s/%s#%d:%s", owner, repo, number, comment))
	f.IssueComments[number] = append(f.IssueComments[number], github.IssueComment{
		ID:   f.IssueCommentID,
		Body: comment,
		User: github.User{Login: botName},
	})
	f.IssueCommentID++
	return nil
}
// CreateComment adds a comment to a PR