Improve logging when there are no DB migrations to run
Improve logging when there are no DB migrations to run

Don't display an empty array here

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server