mandb: 3 questions

[Mike McClain <mike.junk@nethere.com>]

Some program, I presume mandb keeps recreating /var/cache/man/cs/ etc.
after I delete them.
1) Is there any use to have such extra directories cluttering up the
drive on a single user system when the user doesn't read or speak any
of those other languages?
2) Is there any configuration I can do to stop these directories being
recreated?
3) How many milliseconds does mandb save for the average access?
Thanks,
Mike
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