Diff - 1ab33ec5fbf88768cb1ef22cb8a5873cb757d4fc^! - mirrors/flutter - Git at Google

commit: 1ab33ec5fbf88768cb1ef22cb8a5873cb757d4fc
[log]
author: Dan Field <dfield@gmail.com>
Fri Nov 02 20:02:07 2018 -0700
committer: GitHub <noreply@github.com>
Fri Nov 02 20:02:07 2018 -0700
tree: d9f146ea746a60ffde6b709a4ad3b74b5e029b7b
parent: a4a0ff9ab412d825334ba75796b329a0e211c8de [diff]

Update `osx_instance` (#23883)

* Update `osx_instance`

Cirrus no longer supports `high-sierra-xcode-9.4`.