[CentOS] Btmp and Wmtp log rotate

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WTMP and BTMP

BTMP is getting huge after a year, about 800MB, WTMP is getting close to
1MB.
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I am on the digest, so I hope this does not start a new thread (responding
to my own thread).
I went and added a file to /etc/logrotate.d and ran it to rotate the file

/var/log/btmp {
    minsize 1M
    create 0600 root root
    rotate 1
}

Then I added the same to the logrotate.conf and deleted the file I had added
for manual rotation.

To /etc/logrotate.conf

/var/log/btmp {
    monthly
    minsize 1M
    create 0600 root root
    rotate 1
}


The manual worked. I am gonna delete the 800mb file and call it a wash. Good
thing I left enough on that partition to deal with it.

Chmod 0600, root/root, add to etc/logrotate.d, monthly.


Any other ideas to optimize this are welcome. This was as installed and
quite odd that it was not included in the setup. 

Thanks