[Merge] lp:~pwlars/phablet-tools/network-no-sudo into lp:phablet-tools

[Paul Larson]

Paul Larson has proposed merging lp:~pwlars/phablet-tools/network-no-sudo into lp:phablet-tools.

Commit message:
Don't use sudo in phablet-network unless it's really needed

Requested reviews:
  Ubuntu Phablet Team (phablet-team)

For more details, see:
https://code.launchpad.net/~pwlars/phablet-tools/network-no-sudo/+merge/235689

We're trying to eliminate the sources of sudo needed in the ci testing process. In this case, even if you specify a network file for phablet-network to use and you have full permissions on it, phablet-network uses sudo to grep for the lines it needs from it unnecessarily. This fixes that so that it should only use sudo if the file is unreadable by the current user.
-- 
https://code.launchpad.net/~pwlars/phablet-tools/network-no-sudo/+merge/235689
Your team Ubuntu Phablet Team is requested to review the proposed merge of lp:~pwlars/phablet-tools/network-no-sudo into lp:phablet-tools.
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