Remote extra record separator from `sh' task action

lib/producer/core/actions/shell_command.rb

@@ -4,7 +4,6 @@ module Producer
       class ShellCommand < Action
         def apply
           remote.execute(arguments.first, output)
-          output.puts
         end
       end
     end

lib/producer/core/testing/mock_remote.rb

@@ -12,7 +12,7 @@ module Producer
 
           case program
           when 'echo'
-            output << tokens.join(' ')
+            output << tokens.join(' ') << "\n"
           when 'true'
             output << ''
           when 'false'