[m-rev.] for post-commit review: simplify tail rec warning test

[Paul Bone]

On Fri, Jan 13, 2017 at 06:53:27PM +1100, Zoltan Somogyi wrote:
> For post-commit review by Paul.
> 
> We discussed this change on m-rev a few days ago.
> 

That looks good, Thanks.



-- 
Paul Bone
http://paul.bone.id.au