Why is the "linux" version identifier all lowercase?

[Nick Sabalausky]

"Lars T. Kyllingstad" <public at kyllingen.NOSPAMnet> wrote in message 
news:j10hg0$2c11$3 at digitalmars.com...
> http://d-programming-language.org/version.html#PredefinedVersions
>
> Why is the "linux" version identifier all lowercase?

Because it's from the time when D/Phobos policy was to expect users know 
where an identifier was borrowed from in order to know how to 
spell/capitalize it, instead of being internally consistent.

Seriously.

I remember NG discussions a while back about why the "linux" identifier was 
all-lower, and that's pretty much all it amounted to, much like the 
pre-2.054 std.string. Well, a combination of that and the language's 
irritating inability to distringuish between an "off" version and a mistyped 
version (although this particular argument hinged on the assumption that 
porting C to D is a more important use of D than writing new D code).

Ok, so I'm biased on the matter ;)