timeprt
bgrace = timeprt(qup->dqblk.dqb_btime);
igrace = timeprt(qup->dqblk.dqb_itime);
static char *timeprt(int64_t seconds);
timeprt(dqbuf.dqb_btime) : "-");
timeprt(dqbuf.dqb_itime) : "-");
char *timeprt(time_t);