def call(severity, datetime, progname, msg)
      # msg2str is the internal helper that handles different msgs correctly
      date_format = datetime.strftime('%Y-%m-%d %H:%M:%S%z')
      "[#{date_format} ##{Process.pid}] [#{progname}] #{severity} -- : "+ msg.join($/) + "#{$/}"
    end
def call(severity, datetime, progname, msg)
      # msg2str is the internal helper that handles different msgs correctly
      date_format = datetime.strftime('%Y-%m-%d %H:%M:%S%z')
      "[#{date_format} ##{Process.pid}] [#{progname}] #{severity} -- : "+ msg.join($/) + "#{$/}"
    end
:nodoc: