Import sendmail 8.14.6
Fix regression in sendmail 8.14.6 release based on errata published at:

http://www.sendmail.com/sm/open_source/download/8.14.6/
Fix a potential memory leak.

https://github.com/acpica/acpica/pull/6
Import ACPICA 20130418.
mostly whitespace changes:
- remove vestiges of the old memory allocator
- clean up some comments
Initialise the chainmask fields regardless of whether 11n support
is compiled in or not.

This fixes issues with people running -HEAD but who build modules
without doing a "make buildkernel KERNCONF=XXX", thus picking up
opt_*.h.  The resulting module wouldn't have 11n enabled and the
chainmask configuration would just be plain wrong.
Merge ACPICA 20130418.
Expose CAM_BOOT_DELAY as a kernel conf item now.

This allows users who boot without loader to adjust their environments
around slightly buggy or slow hardware.

PR:	kern/161809
Submitted by:	rozhuk.im@gmail.com
MFC after:	2 weeks
Add note about fagility of the clang upgrade process.
Make libprocstat(3) extract procstat notes from a process core file.

PR:		kern/173723
Suggested by:	jhb
Glanced by:	kib
MFC after:	1 month
Add procstat_getvmmap function to get VM layout of a process.

MFC after:	1 month
Use procstat_getprocs(3) for retrieving thread information instead of
direct sysctl calls.

MFC after:	1 month
Use more generic procstat_getvmmap(3) for retrieving VM layout of a process.

MFC after:	1 month
Add procstat_getgroups function to retrieve process groups.

MFC after:	1 month
Use procstat_getgroups(3) for retrieving groups information instead of
direct sysctl.

MFC after:	1 month
Add procstat_getumask function to retrieve a process umask.

MFC after:	1 month
Use procstat_getumask(3) for retrieving umaks information instead of
direct sysctl.

MFC after:	1 month
Add procstat_getrlimit function to retrieve a process resource limits info.

MFC after:	1 month
Use procstat_getrlimit(3) for retrieving rlimit information instead of
direct sysctl calls.

MFC after:	1 month
Add procstat_getpathname function to retrieve a process executable.

MFC after:	1 month