Revision 340277

MFC r340100:
  Do not use bzero() for the O_ICMP6TYPE opcode.

  The buffer is already zeroed in compile_rule() function, and also it
  may contain configured F_NOT flag in o.len field. This fixes the
  filling for "not icmp6types" opcode.

MFC r340175:
  Do not print "ip6" keyword in print_icmp6types() for O_ICMP6TYPE opcode.

  It produces incompatibility when rules listing is used again to
  restore saved ruleset, because "ip6" keyword produces separate opcode.
  The kernel already has the check and only IPv6 packets will be checked
  for matching.

PR:		232939
Approved by:	re (kib)