[klibc] stdio

[H. Peter Anvin]

Hi,

I have experimentally done a branch of klibc with buffered stdio
support.  It seems to add about 1.5K of code (for x86-64), which isn't
so bad, except that it means that *every* program now pulls in stdio,
which in turn depends on malloc() and some other pieces of code.

I have not yet implemented fscanf(), however, which may cause additional
bloat.

As of this point, I'm a bit undecided about stdio in klibc.  If you care
about it, you may want to check out the stdio branch from the klibc
repository and try it out.

	-hpa