Merge pull request #762 from wallyworld/sshstorage-not-found

Tweak bash used for sshstorage.Get()

Fixes: https://bugs.launchpad.net/juju-core/+bug/1367695

Return fixed, locale independent string when file is not found.
Merge pull request #763 from wallyworld/sshstorage-not-found-trunk

Merge pull request #762 from wallyworld/sshstorage-not-found

Tweak bash used for sshstorage.Get()

Fixes: https://bugs.launchpad.net/juju-core/+bug/1367695

Return fixed, locale independent string when file is not found.