Fixed all printf format errors reported by gcc -Wformat on i386's:
- %q -> %ll; don't assume that the promotion of off_t is quad_t; only assume that off_t's are representable as long longs.
- printing of dev_t's was completely broken.
Fixed nearby printf format errors not reported by gcc -Wformat on i386's:
- printing of ino_t's and pointers was sloppy.