Merge OpenBSM 1.2-alpha5 from vendor branch to FreeBSD -CURRENT:

- Add a new "qsize" parameter in audit_control and the getacqsize(3) API to
  query it, allowing to set the kernel's maximum audit queue length.
- Add support to push a mapping between audit event names and event numbers
  into the kernel (where supported) using new A_GETEVENT and A_SETEVENT
  auditon(2) operations.
- Add audit event identifiers for a number of new (and not-so-new) FreeBSD
  system calls including those for asynchronous I/O, thread management, SCTP,
  jails, multi-FIB support, and misc. POSIX interfaces such as
  posix_fallocate(2) and posix_fadvise(2).
- On operating systems supporting Capsicum, auditreduce(1) and praudit(1) now
  run sandboxed.
- Empty "flags" and "naflags" fields are now permitted in audit_control(5).

Many thanks to Christian Brueffer for producing the OpenBSM release and
importing/tagging it in the vendor branch.  This release will allow improved
auditing of a range of new FreeBSD functionality, as well as non-traditional
events (e.g., fine-grained I/O auditing) not required by the Orange Book or
Common Criteria.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, AFRL
MFC after:	3 weeks

lib/libbsm/Makefile

@@ -89,6 +89,7 @@ MLINKS=	libbsm.3 bsm.3							\
 	au_control.3 getacflg.3						\
 	au_control.3 getacna.3						\
 	au_control.3 getacpol.3						\
+	au_control.3 getacqsize.3					\
 	au_control.3 au_poltostr.3					\
 	au_control.3 au_strtopol.3					\
 	au_domain.3 au_bsm_to_domain.3					\