SmartOS and LX brand issues with Go 1.9

[jwreagor]

Ref: OS-6467

It has come to my attention that current builds of ContainerPilot could be suffering from another underlying issue in SmartOS LX brand zones (containers). The gist of the issue originates from Go compiled binaries receiving an unexpected SIGABRT due to signal interpositioning under Illumos. Some dev reproductions noted the problem during SIGCHLD handling which also coincided with customer reports, known core dumps and ContainerPilot features.

This SmartOS issue has been addressed in release 20171221T020409Z. Some customers have noted better support of ContainerPilot after this release.

Also, we should build and test ContainerPilot under Go 1.10. I'll leave this ticket open to address that.