function timestamp, nullpar

; return timestamp in appropriate format

; MODIFICATION HISTORY
progver = 'v2008.Sep.05' ;--- (A.Davey) Written.
progver = 'v2008.Oct.01' ;--- (M.Weber) Reviewed version.

   t = strsplit(systime(),/extract)
   return, ' '+t[2]+'-'+t[1]+'-'+t[4]+' '+t[3]
end