prow/repoowners/repoowners.go
func (o *RepoOwners) FindApproverOwnersForFile(path string) string {
	return findOwnersForFile(o.log, path, o.approvers)
}
func (o *RepoOwners) FindApproverOwnersForFile(path string) string {
	return findOwnersForFile(o.log, path, o.approvers)
}
// FindApproverOwnersForFile returns the OWNERS file path furthest down the tree for a specified file
// that contains an approvers section