All parameters passed via  @_ are passed by reference; it's Perl's normal way of doing business. Consider: 
>perl -wMstrict -le
"my $i = 42;
 inc($i);
 print $i;
 sub inc { ++$_[0] }
"
43

[download]
See the third paragraph in the DESCRIPTION section of perlsub.

In reply to Re: chomp it chomp it good by AnomalousMonk
in thread chomp it chomp it good by Anonymous Monk

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