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 compilation.

Pointy hat to:	ken
Enable libcompiler-rt on MIPS.

Originally we disabled libcompiler-rt on MIPS and SPARC64, because of an
issue where __clzdi2 and __ctzdi2 would cause endless recursion. This
bug has been fixed in r230021 already, but for some reason we only
switched to libcompiler-rt on SPARC64 -- not MIPS.

This means we can finally use <stdatomic.h> on all our architectures.
Wrong cast.

MFC after:	1 month
MFC
mdoc: end function context properly.
Add missing Pp. Also remove some minor whitespace.

PR:		177995
Submitted by:	olgeni
There's some races (likely in the BAR handling, sigh) which is causing
the pause/resume code to not be called completely symmetrically.

I'll chase down the root cause of that soon; this at least works around
the bug and tells me when it happens.
Add more details about updating across the clang divide.
Add hints about having a root shell around on live updates.
Couple of additional nits.
When doing BAW tracking, don't dereference a NULL pointer if the BAW
slot is actually NULL.
Remove cross-references to nonexistent CPU_SET(3) manpage.
Also fix cpu_getaffinity(2) document title.

PR:		176317
Submitted by:	brucec
Fix an off by one calculation in wiipic_dispatch().
Since we didn't break the loop, we should set i to -1 to start from the
beginning.

Submitted by:	Steven Hartland
MFC after:	1 week
Move EXAMPLES descriptions to before the actual command.

PR:		177870
Submitted by:	Bjorn Heidotting <b.heidotting@yahoo.com>
Add example.

PR:		177025
Submitted by:	Fernando <fernando.apesteguia@gmail.com>
Reviewed by:	theraven
Remove redundant definitions of _ALIGN and _ALIGNBYTES.
Merge the 386 and amd64 versions of the fenv.h, to make cc -m32
compilations which use fenv.h work.

Reviewed by:	tjil
Sponsored by:	The FreeBSD Foundation
Add OHCI controller ID.

MFC after:	2 weeks
Submitted by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
Fix manual page.

PR:		usb/177896
Submitted by:	Leif Velcro <velcroleaf@rocketmail.com>