Merge branch 'hardened/current/master' into hardened/current/ptrace

Conflicts:
	sys/sys/jail.h
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge branch 'hardened/current/master' into hardened/current/ptrace

Conflicts:
	sys/sys/jail.h
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge branch 'hardened/current/master' into hardened/current/ptrace

Conflicts:
	sys/sys/jail.h
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
Merge remote-tracking branch 'origin/hardened/current/master' into hardened/current/ptrace
s/-/_/ in name.
A connection in TIME_WAIT state before calling close() actually did not
received any RST packet.  Do not set error to ECONNRESET in this case.

Differential Revision:	https://reviews.freebsd.org/D879
Reviewed by:		rpaulo, adrian
Approved by:		jhb (mentor)
Sponsored by:		Verisign, Inc.
Expect nice_err to fail on FreeBSD with unprivileged users

PR: 189821
Sponsored by: EMC / Isilon Storage Division
Check error return from reading integer part of temperature.

There's a very remote, but possible, chance that the integer part read will
fail, but the fraction read succeeds, at which point the reported temperature is
invalid.

Reported by: Matthew Rezny
MFC after:	3 weeks
Add #include <stdio.h> for printf

Sponsored by: EMC / Isilon Storage Division