heads-up: systemtap-sdt-devel rebase in rawhide

[Roland McGrath]

> What I was more worried about was what happens when sdt.h is included in
> plain C code.  Whatever you think of C++ apps that don't play nice with
> <limits>, such a complaint is unlikely to impress authors of plain C
> apps.

The only header used by <sys/sdt.h> in C is <stdint.h>.
(Frankly I can't tell any more why we even need that, and probably we don't.)