- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

Remove documentation describing functionality which geom(4) does not,
in fact, provide.

Reviewed by: phk
MFC after: 3 days
Approved by: re (gjb)

Add GEOM_* kernel options to the SYNOPSIS.

mdoc: order prologue macros consistently by Dd/Dt/Os

Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by: ru
Approved by: philip, ed (mentors)

Add links to libgeom(3) where appropriate.

Fix a typo and add manpage links to geom(4).

Approved by: rwatson (mentor)

Clarify that G_F_DISKIOCTL is unused, and remove G_T_DETAILS altogether,
since it isn't actually #defined.

Discussed with: phk

Clean up the grammar in here some.

-mdoc sweep.

Assorted markup fixes and minor wordsmithing.

Approved by: re

Document the GEOM debug flags.

Mechanically kill hard sentence breaks and double whitespaces.

Don't confuse "GEOM" with "geom".

Approved by: phk

Kill whitespace at EOL.

Approved by: re (blanket)

A few stylistic fixes.

Try to clarify how orphaning works.

english(4) police.

Uniformly refer to a file system as "file system".

Approved by: re

mdoc(7) police: Use the default .Os version.

Approved by: re

Stamp out Danglish: Spelling, grammer and other nitpicking.

Submitted by: "Steven G. Kargl" <kargl@troutmask.apl.washington.edu>

mdoc(7) police: remove whitespace at EOL.

First cut at a geom(4) manpage.

The mdoc markup and all spelling errors in this file are all legal game
for anyone with more doc-clue than me.