The documentation does not say to look in perlsys but in perlsyn (http://perldoc.perl.org/perlsyn.html#For-Loops):

> perldoc -f for
    for
    foreach
    unless
    until
    while   These flow-control keywords are documented in "Compound
            Statements" in perlsyn.

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In reply to Re: for loop by Corion
in thread for loop by perlaintdead

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