From https://github.com/microsoft/WSL/issues/423#issuecomment-221627364:
> it's unlikely we'll change it to something that doesn't contain "Microsoft"
> or "WSL".
... but well, it happened. If they change it incompatibly w/o adding an stable
detection mechanism, I think we should not add yet another detection method.
But adding a different casing of "microsoft" is not a very big step, so let's
do that.
Follow-up for #11932.
Zbigniew Jędrzejewski-Szmek
a2f838d590