Need to retain FamilyInternetV6 for backwards compatibility with CDE and other

sources written to the original X11/IPv6 draft which was included in Solaris 9.

diff --git a/X.h b/X.h

index 5cf695d..d06886b 100644

--- a/X.h

+++ b/X.h

@@ -299,6 +299,7 @@ are reserved in the protocol for errors and replies. */

#define FamilyDECnet 1

#define FamilyChaos 2

#define FamilyInternet6 6 /* IPv6 */

+#define FamilyInternetV6 6 /* SUNSOFT - retained for backwards compatibility with original IPv6 draft */

/* authentication families not tied to a specific protocol */

#define FamilyServerInterpreted 5