Pass --init to "docker run" so it can use tini

[hornmw]

"docker run" is failing because it cannot find tini in /usr/local/bin

Since tini is now included by default in docker, we can pass in the --init flag to ensure it's used.

See https://github.com/krallin/tini#using-tini for details

[CLAassistant]

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[hornmw]

I am waiting on legal approval before I can sign the CLA. Please hold, as of now we have not yet agreed to this CLA.

[hornmw]

Legal approval was granted.