Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
Merge bpf_filter.c r182412 and remove additional local checks.While I am here, use more realistic value for illegal code test case.
Fix style consistencies and a comment.
Add more test cases for invalid instructions and add commentsabout bpf_validate(9) issues.
Add simple bpf(9) regression tests and test cases.