Misc cleanup:
- KNF, ANSIfy, remove __P()
- use __func__ to print function names
- use __arraycount()
- include "ioconf.h" for struct cfdriver
- u_intNN_t -> uintNN_t
- wrap long lines
etc.

update for libbug.h, console I/O

libbug from Dale Rahn. Revisions by Theo de Raadt and myself.