oldlog_entry
const struct oldlog_entry *ola = a, *olb = b;
struct oldlog_entry *oldlogs;
oldlogs = malloc(MAX_OLDLOGS * sizeof(struct oldlog_entry));
max_logcnt * sizeof(struct oldlog_entry));
sizeof(struct oldlog_entry));
qsort(oldlogs, logcnt, sizeof(struct oldlog_entry),