hg: jdk/jdk: 8210821: Support dns_canonicalize_hostname in krb5.conf

[weijun.wang at oracle.com]

Changeset: 3241975b1830
Author:    weijun
Date:      2018-10-02 16:02 +0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/3241975b1830

8210821: Support dns_canonicalize_hostname in krb5.conf
Reviewed-by: valeriep

! src/java.security.jgss/share/classes/sun/security/krb5/PrincipalName.java
+ test/jdk/sun/security/krb5/auto/DnsCanonicalizeHostname.java
+ test/jdk/sun/security/krb5/auto/dns_canonicalize_hostname.hosts