Eventually, the doc will be here: http://www.purl.org/tcl/home/man/tcl8.5/TclCmd/lsearch.html
lrepeat number element1 ?element2 element3 ...?
This command builds up a list by repeating elements. It will be a part of Tcl 8.5.0 .
An example of how it will work is
lrepeat 3 a a a a
RS: Note the possible confusion with string repeat's syntax:
% string repeat a 5 aaaaa