Enable hyphenation for monospaced font

[Teemu Likonen]

I need need to enable hyphenation for monospaced font. I use fontspec
package and Lualatex compiler. I currently do this with HyphenChar
option:

    \usepackage{fontspec}
    \setmonofont{libertinusmono-regular.otf}[HyphenChar=-]

This works but fontspec gives warning at the compile time:

    Package fontspec Warning: Ignored XeTeX-only feature: 'HyphenChar'.

Fontspec's manual says that HyphenChar is a Xetex-only feature except
HyphenChar=None which also works with Luatex. So, my HyphenChar=-
shouldn't work with Lualatex but it actually does.

What is the preferred, officially supported and documented way to enable
hyphenation for monospaced font using fontspec and Lualatex?

-- 
/// Teemu Likonen - .-.. https://www.iki.fi/tlikonen/
// OpenPGP: 4E1055DC84E9DFF613D78557719D69D324539450
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