# File logger.rb, line 449
449:     def initialize
450:       @datetime_format = nil
451:     end

     # File logger.rb, line 453
453:     def call(severity, time, progname, msg)
454:       Format % [severity[0..0], format_datetime(time), $$, severity, progname,
455:         msg2str(msg)]
456:     end