def summary
      if update_type == :message
        message
      elsif update_type == :recv and @data[2,9] == "+++++++++"
        "creating local"
      elsif update_type == :recv
        "updating local"
      elsif update_type == :sent and @data[2,9] == "+++++++++"
        "creating remote"
      elsif update_type == :sent
        "updating remote"
      else
        changes = []
        [:checksum, :size, :timestamp, :permissions, :owner, :group, :acl].each do |prop|
          changes << prop if send(prop) == :changed
        end
        changes.join(", ")
      end
    end
def summary
      if update_type == :message
        message
      elsif update_type == :recv and @data[2,9] == "+++++++++"
        "creating local"
      elsif update_type == :recv
        "updating local"
      elsif update_type == :sent and @data[2,9] == "+++++++++"
        "creating remote"
      elsif update_type == :sent
        "updating remote"
      else
        changes = []
        [:checksum, :size, :timestamp, :permissions, :owner, :group, :acl].each do |prop|
          changes << prop if send(prop) == :changed
        end
        changes.join(", ")
      end
    end
Simple description of the change.
 @return [String]