It doesn't matter with this $all, but there is a magical split which splits on all whitespace and trims any off the ends. It's triggered by using a quoted single space as the first argument.

my @arr = someFunc( @dd, split ' ', $all);
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The action of magical split on a variable is very like that of qw on its literal argument.

my @args = qw/
     name1
     name2
     name3
/;
my $all = "\n    name1\n    name2\n    name3\n";
my @arr = split ' ', $all;
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