[automerger skipped] Add a timeout for the DNS probe.
am: 28c966eaa9 -s ours
am skip reason: change_id Ib3ab9105d7ae39f551b51e8d5a04b9ec5e549655 with SHA1 6413419435 is in history

Change-Id: Id730bd5b05ad4bd9f891d35a47485c8f7d2a1218