[PATCH][BZ #13928] Use minimum ttl value from dns query

[Carlos O'Donell]

On Fri, Mar 30, 2012 at 3:08 AM, Siddhesh Poyarekar <siddhesh@redhat.com> wrote:
> 2012-03-29  Siddhesh Poyarekar  <siddhesh@redhat.com>
>
>        * resolv/nss_dns/dns-host.c (getanswer_r): Also consider ttl
>        from a CNAME entry and return the minimum ttl for the query.
>        (gaih_getanswer_slice): Likewise.

OK to checkin with two changes:

(a) Merge copyright years.

(b) Add a comment to each change of "< *ttlp" saying *why* the lowest
TTL is used e.g. "The entry expires when any one of the lookups
expires, therefore the entry TTL is the minimum TTL of the lookups."

Cheers,
Carlos.