heroku pipelines:promote exit code

[jaredmdobson]

I was wondering if we could get the heroku pipelines:promote to give a failing exit code on failure instead of exit code 0.

[gudmundur]

@onesupercoder That totally makes sense. I'll bring it up with the team and try to get a PR open for this in the coming days.

[jaredmdobson]

Thanks a million

[jaredmdobson]

Yeah i have no idea if it is something as easy as, a2e889b or something way more complicated.