[Merge] lp:~xnox/ubuntu/saucy/mountall/btrfs into lp:ubuntu/mountall

[James Hunt]

Drive-by review comment...

- major_zero() could do with an nih_assert call to check mnt (as could missing_fsck() and find_fsck()).
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https://code.launchpad.net/~xnox/ubuntu/saucy/mountall/btrfs/+merge/177822
Your team Upstart Reviewers is requested to review the proposed merge of lp:~xnox/ubuntu/saucy/mountall/btrfs into lp:ubuntu/mountall.