tree 765f28d56030b90a741461df6c5abaa30b37d6e4
parent 014872a962a85fe11cd5a1798a8a390b64493c48
author Hao Nguyen <haon@google.com> 1556742127 -0700
committer Hao Nguyen <haon@google.com> 1558650242 -0700

Fix gulpfile to use gulp 4 API