Check for filter versions and break up box output

plugins/commands/cloud/box/show.rb

@@ -54,7 +54,7 @@ module VagrantPlugins
               access_token: access_token
             )
             with_box(account: account, org: org, box: box_name) do |box|
-              if box && options[:versions]
+              if box && !Array(options[:versions]).empty?
                 box = box.versions.find_all{ |v| options[:versions].include?(v.version) }
               else
                 box = [box]
@@ -63,6 +63,7 @@ module VagrantPlugins
               if !box.empty?
                 box.each do |b|
                   format_box_results(b, @env)
+                  @env.ui.output("")
                 end
                 0
               else

test/unit/plugins/commands/cloud/box/show_test.rb

@@ -23,6 +23,7 @@ describe VagrantPlugins::CloudCommand::BoxCommand::Command::Show do
       allow(ui).to receive(:warn)
       allow(ui).to receive(:success)
       allow(ui).to receive(:error)
+      allow(ui).to receive(:output)
       allow(env).to receive(:ui).and_return(ui)
       allow(VagrantCloud::Account).to receive(:new).
         with(custom_server: anything, access_token: access_token).