commands: fix report shosts

With new mysql and sql alchemy DB access system 'rocks report shosts'
reported a broken shosts file (as reported below).

The IP field must be unpacked as in this patch.

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<file name="/etc/ssh/shosts.equiv">
('10.1.1.1',)
('137.110.119.102',)
('10.1.255.254',)
</file>
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