#against original version
line 925
<<      next if($val =~ m{^\s*$}s);  # Skip all whitespace content
>>      next if ($self->{opt}->{normalisespace} >= 0 and $val =~ m{^\s*$}s);  # Skip all whitespace content

line 992
>>  if ($self->{opt}->{normalisespace} == -1 and ref($attr->{$self->{opt}->{contentkey}}) eq 'ARRAY'
>>   and !grep( !m{^\s*$}s, @{$attr->{$self->{opt}->{contentkey}}})) {
>>    delete $attr->{$self->{opt}->{contentkey}};
>>  }