DNSSEC validation code in dig coded by Olivier Courtay
(olivier.courtay@irisa.fr) for the IDsA project (http://idsa.irisa.fr).
1609. [func] dig now has support to chase DNSSEC signature chains.
Requires -DDIG_SIGCHASE=1 to be set in STD_CDEFINES.
+ DNSSEC validation code in dig coded by Olivier Courtay
+ (olivier.courtay@irisa.fr) for the IDsA project
+ (http://idsa.irisa.fr).
+
1608. [func] dig and host now accept -4/-6 to select IP transport
to use when making queries.