NAME
	short_date - a short form of a datum

SYNOPSIS
	string short_date(int time | void)

DESCRIPTION
	This simulated efun returns a short string (6-7 characters) describing
	the date of the given time. If not given an argument, the value of the
	efun time() is used.

EXAMPLE
	short_date(time())	Short date for the current time.
	short_date(0)		-"-
	short_date()		-"-
	short_date(1)		1Jan70
	short_date(1246789)	15Jan70

SEE ALSO
	time(E), ctime(E)

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