Dear SRFI editors,

Could you update the SRFI with the attached draft? The change is the
following:

- Optional argument of timer-schedule! and timer-reschedule! accepts
   time-duration object
   (Discussion on c.l.s:
    https://groups.google.com/forum/#!topic/comp.lang.scheme/myobm6h4l6s)

Thanks,

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Takashi Kato
E-mail: xxxxxx@ymail.com