I understood that point to mean one of these two, probably the first:

sub nothing { return }
sub something { return undef }
my %foo = ( abc => nothing() );
my %bar = ( abc => 123, something() );

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In reply to Re^2: Why is "odd number of elements in hash assignment" warning and not error? by Anonymous Monk
in thread Why is "odd number of elements in hash assignment" warning and not error? by Dallaylaen

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