[Merge] lp:~pwlars/ubuntu-test-cases/server-fix-ttyS0 into lp:ubuntu-test-cases/server

[Diogo Matsubara]

Kicked a test run for samba with the recent Paul's change and it passes fine as well: http://d-jenkins.ubuntu-ci:8080/view/Vivid/view/Smoke%20Testing/job/vivid-server-amd64-smoke-samba-server/138/
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https://code.launchpad.net/~pwlars/ubuntu-test-cases/server-fix-ttyS0/+merge/256978
Your team Ubuntu Server Developers is requested to review the proposed merge of lp:~pwlars/ubuntu-test-cases/server-fix-ttyS0 into lp:ubuntu-test-cases/server.