Comment 3 for bug 1039213

Lloyd,
  Thanks for the bug and the suggestion of libnss-myhostname.
  This would be one solution. In most cases, it would be suitable for you to use one of the cloud-init mechanisms for managing /etc/hosts. I'll leave this bug as "triaged" and change the subject ot mention libnss-myhostname. However, adding this is not something we'd do in a SRU (addressing anything already released) and I dont think terribly important for quantal even given that we have other ways of managing that.