* sys/netinet6/{ipcomp,esp}_input.c: critical missing length check/typo   found by markus@openbsd.
* sys/netinet6/{ipcomp,esp}_input.c: critical missing length check/typo
  found by markus@openbsd.

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame