`appdir-lint.sh` need to detect `*.metainfo.xml` if `*appdata.xml` not availiable
https://github.com/AppImageCommunity/pkg2appimage/blob/c302f81c56d5e37d752a78fc4e1854d36cb09345/appdir-lint.sh#L124-L129
Appstream's fault.
What do you mean with Appstream's fault / why did you close this?
What do you mean with Appstream's fault
Changing the widely used name/path and requiring the entire ecosystem to change is generally a insane and horrific thing to do.
why did you close this?
I forget why, maybe misclick.
Yeah, I agree :/
These files are entirely optional as per the AppImageSpec, aren't they?