Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

sesutil: Add extra information specific to some SES devices to sesutil map

Rework stat2ascii preparing a buffer of what could be printed. This prevent the
risk of overflowing a static buffer.

Do not print those informations anymore in the "status" but into a new
"extra status" only printed if there are actually extra things to print.

Now add those extra informations:

* Thermal sensor temperature
* Cooling devices speed
* Voltage sensors, current consumption

Tested by: AllanJude
Sponsored by: Gandi.net
Differential Revision: https://reviews.freebsd.org/D4520

Improve and expand sesutil(8)

- Return an error if no matching device is found when the locate command is run
- Enhance the locate command to be able to address drive bays with no disk, or where the SES controller has not made the mapping to the device name
- Added the fault command, similar to locate, but a different SES property. On some of my controllers locate blinks the activity light, others the fault light. The fault command keeps the fault light on constant.
- Improve the usage() output and use it everywhere
- Added the map command, displays all elements connected to each (or the specified) ses(4) controller
- Added the status command, returns the overall status of the ses(4) controller

Reviewed by: wblock (man page, earlier version)
Approved by: bapt (mentor)
MFC after: 3 weeks
Relnotes: yes
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D3580

Add a new sesutil(8) utility

This is an utility for managing SCSI Enclosure Services (SES) device.

For now only one command is supported "locate" which will change the test of the
external LED associated to a given disk.

Usage if the following:
sesutil locate disk [on|off]

Disk can be a device name: "da12" or a special keyword: "all".

Reviewed by: mav
MFC after: 1 month
Relnotes: yes
Sponsored by: gandi.net
Differential Revision: https://reviews.freebsd.org/D3544