If you are not using the return, don't use a map.

That said I would write your example as: 

while (my @fields = (getpwent)[6,7]) {
  print map "$_\n", @fields, ("-" x 80);
}

[download]
(print is quite happy taking a list...)

In reply to Re (tilly) 1: map vs. foreach by tilly
in thread map vs. foreach by rchiav

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