refactor(kzip): use kzip.Scan() helper (#3969)
refactor(kzip): use kzip.Scan() helper (#3969)


kythe/kythe,kythe/kythe,kythe/kythe,kythe/kythe,kythe/kythe,kythe/kythe,kythe/kythe,kythe/kythe,kythe/kythe,kythe/kythe,kythe/kythe