RFR 8210821: Support dns_canonicalize_hostname in krb5.conf

[Weijun Wang]

And please also review the release note at

   https://bugs.openjdk.java.net/browse/JDK-8211380

The text is copied below:

Supports the `dns_canonicalize_hostname` setting in krb5.conf. When set to true, a short hostname in a service principal name will be canonicalized to a FQDN if available. Otherwise, no canonicalization is performed. The default value is true. This is also the behvaior before JDK 12.

Thanks
Max


> On Sep 29, 2018, at 8:15 AM, Valerie Peng <valerie.peng at oracle.com> wrote:
> 
> 
> Sure, I like the new simplified result.
> 
> Changes look fine,
> 
> Valerie
> 
> 
> On 9/26/2018 7:09 PM, Weijun Wang wrote:
>> Webrev updated at https://cr.openjdk.java.net/~weijun/8210821/webrev.01.
>> 
>>> On Sep 26, 2018, at 11:57 PM, Weijun Wang <weijun.wang at oracle.com> wrote:
>>> 
>>> Hi Valerie
>>> 
>>> I've updated the CSR to remove the "always canonicalize" choice and now the default is "true", i.e. the current "smart-canonicalization" behavior. It's 12am here and I'll update the webrev tomorrow.
>>> 
>>> Thanks
>>> Max
>>> 
>>>> On Sep 18, 2018, at 8:52 AM, Valerie Peng <valerie.peng at oracle.com> wrote:
>>>> 
>>>> Look fine to me. Added myself to CSR as reviewer.
>>>> 
>>>> Thanks,
>>>> 
>>>> Valerie
>>>> 
>>>> 
>>>> On 9/17/2018 1:17 AM, Weijun Wang wrote:
>>>>> Please review the code change and CSR at
>>>>> 
>>>>>   http://cr.openjdk.java.net/~weijun/8210821/webrev.00/
>>>>>   https://bugs.openjdk.java.net/browse/JDK-8210822
>>>>> 
>>>>> Thanks
>>>>> Max
>>>>> 
>