smaller improvements; jmc@ and nicm@ both ask me to get this in because
further tweaking will be easier in-tree

is NULL, and third-party software is starting to rely upon this.
Adapted from FreeBSD via Jona Joachim (jaj ; hcl-club , .lu), with minor
tweaks from nicm@ and yours truly.

pointed out by Moritz Grimm (mgrimm-at-mrsserver-dot-net)

better visual cues as to what's happening. Feedback/ok aja@ schwarze@

sthen@ ok.

feedback from miod@ and deraadt@

jasper@

a section will help people looking for just the MALLOC_OPTIONS.
ok otto@ jmc@

ok krw@

we are beyond the nfs diskless /var and /usr mounting.  Issue also
spotted by Hugo Villeneuve, attempt at repair by me.  Let's see how it
works out in practice...
looked at by krw, too

grep in a NFS diskless environment.  Found and fixed by Hugo Villeneuve

fchmodat(2), fstatat(2), mkdirat(2), mkfifoat(2), mknodat(2),
faccessat(2), fchownat(2), linkat(2), readlinkat(2), renameat(2),
symlinkat(2), unlinkat(2), utimensat(2), futimens(2), and
fdopendir(3).
"Minor" libc bump.
Tested in a bulk build by naddy@
Much help from guenther@, thib@, tedu@, oga@, and others.
ok deraadt@, naddy@

ok deraadt@

dd_flags is renamed to the placeholder position dd_unused so that
we can spot "broken software" which assumes we have Jan Simon Pendry's
union mounts (we don't have them, and won't have them ever again).
__opendir2 question spotted by matthew
verified to not break ports by sthen

use-after-free bugs; ok krw@ dlg@ pirofti@

domainname being set.  adjust the scripts to start it in that way.
discussed with pyr

individual pages (based on the existing string man pages). By Tim van
der Molen (tbvdm at xs4all dot nl) after a suggestion by millert@.
ok deraadt

so we can enjoy it on the screen as well
ok deraadt@

do that if pf is actually enabled (rely on pfctl -si)
requested by deraadt@

ok robert@

and complex math routines are complete.  OK kettenis@.

extended-precision support.  Mostly from Cephes.

ok robert@ deraadt@

the wcsdup example.
ok stsp

startups according to rules that some of us understand.  it may come of
sounding cocky, but any step beyond that would end up with a dependency
graph which will never happen.  this file is now ~60% of the length a
week ago.
ok guenther, robert, aja and people who will not test it until it is in

accordingly.
ok robert@

ok robert@

rc_pre() functions are returning correctly. This change
also simplyfies the changes because false || return 1 can be replaced
with false if that's the last call. thanks halex@!

ok halex