update xcode version to 9.4 10/head
authorYifan Zou <yifanzou@google.com>
Wed, 14 Aug 2019 05:28:26 +0000 (22:28 -0700)
committerYifan Zou <yifanzou@google.com>
Wed, 14 Aug 2019 05:28:26 +0000 (22:28 -0700)
commit3c52d43d74851089e46a0ddbef58ef074274a695
tree4975060a1118b8487947b7b4143f264be7abbe95
parent40c0bd1a36d70736b84e925889cdad417e429fd4
update xcode version to 9.4
.travis.yml