Parsing elements with dashes fails using mediainfo v22.09

[juseveno]

with MediaInfoLib - v21.09, the command to generate output as XML seems to remove dashes from elements' names :

mediainfo <file> --Output=XML

<extra>
<WAVELISTYEAR>2020</WAVELISTYEAR>
</extra>

with MediaInfoLib - v22.09, the command returns elements' names with dashes :

mediainfo <file> --Output=XML

<extra>
<WAVELIST-YEAR>2020</WAVELIST-YEAR>
</extra>

This is causing issue with MediaInfo.from(<filepath>) :

NameError (`@wavelist-year' is not allowed as an instance variable name)