database: fix format msg for sprint
database: fix format msg for sprint

Signed-off-by: Raphael S. Carvalho <1e2942cea40e3b4d2162dfcd9e53e41c05a84d22@scylladb.com>
Message-Id: <20170425224920.16607-1-1e2942cea40e3b4d2162dfcd9e53e41c05a84d22@scylladb.com>

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