Note also, chomp() doesn't really act like a list operator when parens aren't used (unlike print(), warn(), reverse(), etc):

$ perl -MO=Deparse,-p -e 'chomp $a, $b'
(chomp($a), $b);
-e syntax OK

$ perl -MO=Deparse,-p -e 'warn $a, $b'
warn($a, $b);
-e syntax OK

$ perl -MO=Deparse,-p -e 'reverse $a, $b'
reverse($a, $b);
-e syntax OK

$ perl -MO=Deparse,-p -e 'print $a, $b'
print($a, $b);
-e syntax OK
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