New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/28771#issuecomment-780046267

Comment:
@fosslinux it's optional only because they can use it to determine where to dump the polkit config file https://github.com/heftig/rtkit/blob/c295fa849f52b487be6433e69e08b46251950399/meson.build#L53