Restore dns hosts section

The dns hosts section was accidentally removed in change I82ea856ac.

Change-Id: I1e5c0be1384b2874be4112310c89d337be6d0e9f
1 file changed
tree: f4d99a011608f4e36ca044601621c75a0963a284
  1. jenkins/
  2. jenkins-docker/
  3. worker/
  4. .gitignore