Merge pull request #18611 from yongtang/04162018-roll-shape
authorMartin Wicke <577277+martinwicke@users.noreply.github.com>
Wed, 18 Apr 2018 22:13:05 +0000 (15:13 -0700)
committerGitHub <noreply@github.com>
Wed, 18 Apr 2018 22:13:05 +0000 (15:13 -0700)
Improve shape function check for `tf.roll`


Trivial merge