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= sleep_loop =

Usage:
 *  sleep_loop [[$COUNT [$INTERVAL]] $CHARACTER]


This function is used to sleep for certain period of time and output an character at each interval, default:
 * 1 second interval
 * . character

== Example ==

sleep for 60 seconds with an interval of 2 seconds using : as character:
 {{{
sleep_loop 60 2 :
}}}