Created by [CecilWesterhof].

I use tcl mostly for command-line tools. Often I want to output several empty lines. For this I created the following proc:

======
proc emptyLines {{lines 3}} {
    if {![string is integer -strict ${lines}]} {
        error "lines should be an integer (${lines})"
    }
    if {${lines} < 0} {
        error "lines cannot be negative (${lines})"
    }
    puts -nonewline [string repeat \n ${lines}]
}
======

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As always: comments, tips and questions are appreciated.

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