add copyright notice/code modifier's name.

ok by deraadt@
Seems we simply have to live with fatal firmware errors.  Even Linux, with its
driver written by Intel engineers occasionally gets them.  So when we get one,
simply reset the chip, reload the firware and bring the interface up again.

Tested by naddy@, who unfortunately is experiencing the quantum zeno effect
making his iwi(4) not crap out.
ok stsp@
#if 0 out atw_hw_decrypted() as it is currently an unused function as the
code calling it is also #if 0'd out.

atw.c:3021:1: error: unused function 'atw_hw_decrypted' [-Werror,-Wunused-function]

ok deraadt@ sthen@
Remove num_chip_names.

aic79xx.c:93:20: error: unused variable 'num_chip_names' [-Werror,-Wunused-const-variable]

ok deraadt@
Remove string.h dependency from sys/select.h; from FreeBSD, tweaked
by deraadt@.  Sync man page.

ok guenther@, deraadt@
use dv_unit rather than storing (or forgetting to store...) a local
version
noted by uaa@
the hostname.if for a vlan's parent interface should be mode 640 to avoid
a warning at first boot  ok deraadt
Stop security(8) whining about /etc/nsd.conf which has moved, pointed out
by Bjorn Ketelaars.  Check that the /var/nsd/etc directory is protected
instead, it may contain zone-transfer keys etc.
ctype improvements; checked by okan
bz#2171: don't leak local_fd on error; from Loganaden Velvindron @
AfriNIC
mfi_refresh_sensors calls mfi_ioctl_vol which calls mfi_bio_getitall, which
replaces pointers in the softc and all sorts of fun stuff. this protects
the call to bio_getitall with the sc_lock the ioctl path uses, so we dont
get panics like those reported on bugs@ recently.

ok deraadt@
update BUGS to reflect previous; as advised by
guenther and deraadt
update HISTORY: this command first appeared in V1 AT&T.

from Troels Vedel Klojgaard's submission to freebsd-doc (pr #184459):

The who command was among the first 60 UNIX commands, presented
in the first edition of "UNIX Programmer's Manual" (Bell Labs,
Murray Hill, New Jersey, November 3, 1971), as documented by Peter
H. Salus: A Quarter Century of UNIX. Reading, Massachusetts:
Addison-Wesley, 1995, page 41f.

verified/ok sobrado
remove reference to non-existent krb5(3). i don;t see any obvious place
to point folks to, so removing it until such time as i find one.
tweak from deraadt;
Looks like the eMMC does no like block read request lower than block
size. Rever the bsize to default 512 to fix the problem while a proper
fix is worked on.

Spotted by rapha@
ok rapha@, fgsch@
opt_map CIRCLEQ -> TAILQ.

ok jsing@ (with nit), jca@
Eliminate spurious space that breaks parsing of nwids containing
blanks.

Same fix was applied by todd@ to /etc/netstart (r1.114) in 2006.

Pointed out by Remy via bugs@. Thanks!
ifp must be initialized in ip_setmoptions;  from oga via mpi, ok mpi
Use EVP_sha1 directly instead of doing the EVP_get_digestbyname lookup.
Correct the comment while here: RFC5996 says we SHOULD use SHA1 as a
hashing function for RSA Digital Signatures.  Tested by and OK markus.