Most shared object in linux have their initialization in a separate
.init_array section. but glibc does not have the same behavour. Instead
the initialization is part of crt0. which (as it seams to me) run after
.init_array section. As such, this patch move IO initialization to
separate function that is marked as .init_array member and then the crt0
call this function only if init_array was never invoked (as in
statically linked binaries).

I didn't think it'd be this useful first, but thank god for `cargo fix --edition`!

Huge thanks to @xTibor for both discovering that this was still an issue, and also providing information with how to fix it

Turns out, it's just redox not having a NULL pointer here. Linux does.